18750320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{811}}^1$

素因数の和:858

約数の個数: 60

約数和(自身を含む): 46366824

約数和(自身を除く): 27616504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 811, 1156, 1360, 1445, 1622, 2312, 2890, 3244, 4055, 4624, 5780, 6488, 8110, 11560, 12976, 13787, 16220, 23120, 27574, 32440, 55148, 64880, 68935, 110296, 137870, 220592, 234379, 275740, 468758, 551480, 937516, 1102960, 1171895, 1875032, 2343790, 3750064, 4687580, 9375160, 18750320]

約数ペア:

[(1, 18750320), (2, 9375160), (4, 4687580), (5, 3750064), (8, 2343790), (10, 1875032), (16, 1171895), (17, 1102960), (20, 937516), (34, 551480), (40, 468758), (68, 275740), (80, 234379), (85, 220592), (136, 137870), (170, 110296), (272, 68935), (289, 64880), (340, 55148), (578, 32440), (680, 27574), (811, 23120), (1156, 16220), (1360, 13787), (1445, 12976), (1622, 11560), (2312, 8110), (2890, 6488), (3244, 5780), (4055, 4624)]