28053900

素因数分解:

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

素因数の和:161

約数の個数: 216

約数和(自身を含む): 103541984

約数和(自身を除く): 75488084

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 61, 63, 70, 73, 75, 84, 90, 100, 105, 122, 126, 140, 146, 150, 175, 180, 183, 210, 219, 225, 244, 252, 292, 300, 305, 315, 350, 365, 366, 420, 427, 438, 450, 511, 525, 549, 610, 630, 657, 700, 730, 732, 854, 876, 900, 915, 1022, 1050, 1095, 1098, 1220, 1260, 1281, 1314, 1460, 1525, 1533, 1575, 1708, 1825, 1830, 2044, 2100, 2135, 2190, 2196, 2555, 2562, 2628, 2745, 3050, 3066, 3150, 3285, 3650, 3660, 3843, 4270, 4380, 4453, 4575, 4599, 5110, 5124, 5475, 5490, 6100, 6132, 6300, 6405, 6570, 7300, 7665, 7686, 8540, 8906, 9150, 9198, 10220, 10675, 10950, 10980, 12775, 12810, 13140, 13359, 13725, 15330, 15372, 16425, 17812, 18300, 18396, 19215, 21350, 21900, 22265, 22995, 25550, 25620, 26718, 27450, 30660, 31171, 32025, 32850, 38325, 38430, 40077, 42700, 44530, 45990, 51100, 53436, 54900, 62342, 64050, 65700, 66795, 76650, 76860, 80154, 89060, 91980, 93513, 96075, 111325, 114975, 124684, 128100, 133590, 153300, 155855, 160308, 187026, 192150, 200385, 222650, 229950, 267180, 280539, 311710, 333975, 374052, 384300, 400770, 445300, 459900, 467565, 561078, 623420, 667950, 779275, 801540, 935130, 1001925, 1122156, 1335900, 1402695, 1558550, 1870260, 2003850, 2337825, 2805390, 3117100, 4007700, 4675650, 5610780, 7013475, 9351300, 14026950, 28053900]

約数ペア:

[(1, 28053900), (2, 14026950), (3, 9351300), (4, 7013475), (5, 5610780), (6, 4675650), (7, 4007700), (9, 3117100), (10, 2805390), (12, 2337825), (14, 2003850), (15, 1870260), (18, 1558550), (20, 1402695), (21, 1335900), (25, 1122156), (28, 1001925), (30, 935130), (35, 801540), (36, 779275), (42, 667950), (45, 623420), (50, 561078), (60, 467565), (61, 459900), (63, 445300), (70, 400770), (73, 384300), (75, 374052), (84, 333975), (90, 311710), (100, 280539), (105, 267180), (122, 229950), (126, 222650), (140, 200385), (146, 192150), (150, 187026), (175, 160308), (180, 155855), (183, 153300), (210, 133590), (219, 128100), (225, 124684), (244, 114975), (252, 111325), (292, 96075), (300, 93513), (305, 91980), (315, 89060), (350, 80154), (365, 76860), (366, 76650), (420, 66795), (427, 65700), (438, 64050), (450, 62342), (511, 54900), (525, 53436), (549, 51100), (610, 45990), (630, 44530), (657, 42700), (700, 40077), (730, 38430), (732, 38325), (854, 32850), (876, 32025), (900, 31171), (915, 30660), (1022, 27450), (1050, 26718), (1095, 25620), (1098, 25550), (1220, 22995), (1260, 22265), (1281, 21900), (1314, 21350), (1460, 19215), (1525, 18396), (1533, 18300), (1575, 17812), (1708, 16425), (1825, 15372), (1830, 15330), (2044, 13725), (2100, 13359), (2135, 13140), (2190, 12810), (2196, 12775), (2555, 10980), (2562, 10950), (2628, 10675), (2745, 10220), (3050, 9198), (3066, 9150), (3150, 8906), (3285, 8540), (3650, 7686), (3660, 7665), (3843, 7300), (4270, 6570), (4380, 6405), (4453, 6300), (4575, 6132), (4599, 6100), (5110, 5490), (5124, 5475)]