400235640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:262

約数の個数: 256

約数和(自身を含む): 1427051520

約数和(自身を除く): 1026815880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 73, 84, 105, 107, 120, 122, 140, 146, 168, 183, 210, 214, 219, 244, 280, 292, 305, 321, 365, 366, 420, 427, 428, 438, 488, 511, 535, 584, 610, 642, 730, 732, 749, 840, 854, 856, 876, 915, 1022, 1070, 1095, 1220, 1281, 1284, 1460, 1464, 1498, 1533, 1605, 1708, 1752, 1830, 2044, 2135, 2140, 2190, 2247, 2440, 2555, 2562, 2568, 2920, 2996, 3066, 3210, 3416, 3660, 3745, 4088, 4270, 4280, 4380, 4453, 4494, 5110, 5124, 5992, 6132, 6405, 6420, 6527, 7320, 7490, 7665, 7811, 8540, 8760, 8906, 8988, 10220, 10248, 11235, 12264, 12810, 12840, 13054, 13359, 14980, 15330, 15622, 17080, 17812, 17976, 19581, 20440, 22265, 22470, 23433, 25620, 26108, 26718, 29960, 30660, 31171, 31244, 32635, 35624, 39055, 39162, 44530, 44940, 45689, 46866, 51240, 52216, 53436, 54677, 61320, 62342, 62488, 65270, 66795, 78110, 78324, 89060, 89880, 91378, 93513, 93732, 97905, 106872, 109354, 117165, 124684, 130540, 133590, 137067, 155855, 156220, 156648, 164031, 178120, 182756, 187026, 187464, 195810, 218708, 228445, 234330, 249368, 261080, 267180, 273385, 274134, 311710, 312440, 328062, 365512, 374052, 391620, 437416, 456890, 467565, 468660, 476471, 534360, 546770, 548268, 623420, 656124, 685335, 748104, 783240, 820155, 913780, 935130, 937320, 952942, 1093540, 1096536, 1246840, 1312248, 1370670, 1429413, 1640310, 1827560, 1870260, 1905884, 2187080, 2382355, 2741340, 2858826, 3280620, 3335297, 3740520, 3811768, 4764710, 5482680, 5717652, 6561240, 6670594, 7147065, 9529420, 10005891, 11435304, 13341188, 14294130, 16676485, 19058840, 20011782, 26682376, 28588260, 33352970, 40023564, 50029455, 57176520, 66705940, 80047128, 100058910, 133411880, 200117820, 400235640]

約数ペア:

[(1, 400235640), (2, 200117820), (3, 133411880), (4, 100058910), (5, 80047128), (6, 66705940), (7, 57176520), (8, 50029455), (10, 40023564), (12, 33352970), (14, 28588260), (15, 26682376), (20, 20011782), (21, 19058840), (24, 16676485), (28, 14294130), (30, 13341188), (35, 11435304), (40, 10005891), (42, 9529420), (56, 7147065), (60, 6670594), (61, 6561240), (70, 5717652), (73, 5482680), (84, 4764710), (105, 3811768), (107, 3740520), (120, 3335297), (122, 3280620), (140, 2858826), (146, 2741340), (168, 2382355), (183, 2187080), (210, 1905884), (214, 1870260), (219, 1827560), (244, 1640310), (280, 1429413), (292, 1370670), (305, 1312248), (321, 1246840), (365, 1096536), (366, 1093540), (420, 952942), (427, 937320), (428, 935130), (438, 913780), (488, 820155), (511, 783240), (535, 748104), (584, 685335), (610, 656124), (642, 623420), (730, 548268), (732, 546770), (749, 534360), (840, 476471), (854, 468660), (856, 467565), (876, 456890), (915, 437416), (1022, 391620), (1070, 374052), (1095, 365512), (1220, 328062), (1281, 312440), (1284, 311710), (1460, 274134), (1464, 273385), (1498, 267180), (1533, 261080), (1605, 249368), (1708, 234330), (1752, 228445), (1830, 218708), (2044, 195810), (2135, 187464), (2140, 187026), (2190, 182756), (2247, 178120), (2440, 164031), (2555, 156648), (2562, 156220), (2568, 155855), (2920, 137067), (2996, 133590), (3066, 130540), (3210, 124684), (3416, 117165), (3660, 109354), (3745, 106872), (4088, 97905), (4270, 93732), (4280, 93513), (4380, 91378), (4453, 89880), (4494, 89060), (5110, 78324), (5124, 78110), (5992, 66795), (6132, 65270), (6405, 62488), (6420, 62342), (6527, 61320), (7320, 54677), (7490, 53436), (7665, 52216), (7811, 51240), (8540, 46866), (8760, 45689), (8906, 44940), (8988, 44530), (10220, 39162), (10248, 39055), (11235, 35624), (12264, 32635), (12810, 31244), (12840, 31171), (13054, 30660), (13359, 29960), (14980, 26718), (15330, 26108), (15622, 25620), (17080, 23433), (17812, 22470), (17976, 22265), (19581, 20440)]