210520520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{941}}^1$

素因数の和:1023

約数の個数: 128

約数和(自身を含む): 585999360

約数和(自身を除く): 375478840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 85, 94, 119, 136, 140, 170, 188, 235, 238, 280, 329, 340, 376, 470, 476, 595, 658, 680, 799, 940, 941, 952, 1190, 1316, 1598, 1645, 1880, 1882, 2380, 2632, 3196, 3290, 3764, 3995, 4705, 4760, 5593, 6392, 6580, 6587, 7528, 7990, 9410, 11186, 13160, 13174, 15980, 15997, 18820, 22372, 26348, 27965, 31960, 31994, 32935, 37640, 44227, 44744, 52696, 55930, 63988, 65870, 79985, 88454, 111860, 111979, 127976, 131740, 159970, 176908, 221135, 223720, 223958, 263480, 309589, 319940, 353816, 442270, 447916, 559895, 619178, 639880, 751859, 884540, 895832, 1119790, 1238356, 1503718, 1547945, 1769080, 2239580, 2476712, 3007436, 3095890, 3759295, 4479160, 5263013, 6014872, 6191780, 7518590, 10526026, 12383560, 15037180, 21052052, 26315065, 30074360, 42104104, 52630130, 105260260, 210520520]

約数ペア:

[(1, 210520520), (2, 105260260), (4, 52630130), (5, 42104104), (7, 30074360), (8, 26315065), (10, 21052052), (14, 15037180), (17, 12383560), (20, 10526026), (28, 7518590), (34, 6191780), (35, 6014872), (40, 5263013), (47, 4479160), (56, 3759295), (68, 3095890), (70, 3007436), (85, 2476712), (94, 2239580), (119, 1769080), (136, 1547945), (140, 1503718), (170, 1238356), (188, 1119790), (235, 895832), (238, 884540), (280, 751859), (329, 639880), (340, 619178), (376, 559895), (470, 447916), (476, 442270), (595, 353816), (658, 319940), (680, 309589), (799, 263480), (940, 223958), (941, 223720), (952, 221135), (1190, 176908), (1316, 159970), (1598, 131740), (1645, 127976), (1880, 111979), (1882, 111860), (2380, 88454), (2632, 79985), (3196, 65870), (3290, 63988), (3764, 55930), (3995, 52696), (4705, 44744), (4760, 44227), (5593, 37640), (6392, 32935), (6580, 31994), (6587, 31960), (7528, 27965), (7990, 26348), (9410, 22372), (11186, 18820), (13160, 15997), (13174, 15980)]