51791740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 147571200

約数和(自身を除く): 95779460

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 169, 182, 199, 220, 260, 286, 308, 338, 364, 385, 398, 455, 572, 676, 715, 770, 796, 845, 910, 995, 1001, 1183, 1393, 1430, 1540, 1690, 1820, 1859, 1990, 2002, 2189, 2366, 2587, 2786, 2860, 3380, 3718, 3980, 4004, 4378, 4732, 5005, 5174, 5572, 5915, 6965, 7436, 8756, 9295, 10010, 10348, 10945, 11830, 12935, 13013, 13930, 15323, 18109, 18590, 20020, 21890, 23660, 25870, 26026, 27860, 28457, 30646, 33631, 36218, 37180, 43780, 51740, 52052, 56914, 61292, 65065, 67262, 72436, 76615, 90545, 113828, 130130, 134524, 142285, 153230, 168155, 181090, 199199, 235417, 260260, 284570, 306460, 336310, 362180, 369941, 398398, 470834, 569140, 672620, 739882, 796796, 941668, 995995, 1177085, 1479764, 1849705, 1991990, 2354170, 2589587, 3699410, 3983980, 4708340, 5179174, 7398820, 10358348, 12947935, 25895870, 51791740]

約数ペア:

[(1, 51791740), (2, 25895870), (4, 12947935), (5, 10358348), (7, 7398820), (10, 5179174), (11, 4708340), (13, 3983980), (14, 3699410), (20, 2589587), (22, 2354170), (26, 1991990), (28, 1849705), (35, 1479764), (44, 1177085), (52, 995995), (55, 941668), (65, 796796), (70, 739882), (77, 672620), (91, 569140), (110, 470834), (130, 398398), (140, 369941), (143, 362180), (154, 336310), (169, 306460), (182, 284570), (199, 260260), (220, 235417), (260, 199199), (286, 181090), (308, 168155), (338, 153230), (364, 142285), (385, 134524), (398, 130130), (455, 113828), (572, 90545), (676, 76615), (715, 72436), (770, 67262), (796, 65065), (845, 61292), (910, 56914), (995, 52052), (1001, 51740), (1183, 43780), (1393, 37180), (1430, 36218), (1540, 33631), (1690, 30646), (1820, 28457), (1859, 27860), (1990, 26026), (2002, 25870), (2189, 23660), (2366, 21890), (2587, 20020), (2786, 18590), (2860, 18109), (3380, 15323), (3718, 13930), (3980, 13013), (4004, 12935), (4378, 11830), (4732, 10945), (5005, 10348), (5174, 10010), (5572, 9295), (5915, 8756), (6965, 7436)]