20170961475

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{238639}}^1$

素因数の和:238689

約数の個数: 72

約数和(自身を含む): 40480980480

約数和(自身を除く): 20310019005

約数列:

[1, 3, 5, 7, 15, 21, 23, 25, 35, 49, 69, 75, 105, 115, 147, 161, 175, 245, 345, 483, 525, 575, 735, 805, 1127, 1225, 1725, 2415, 3381, 3675, 4025, 5635, 12075, 16905, 28175, 84525, 238639, 715917, 1193195, 1670473, 3579585, 5011419, 5488697, 5965975, 8352365, 11693311, 16466091, 17897925, 25057095, 27443485, 35079933, 38420879, 41761825, 58466555, 82330455, 115262637, 125285475, 137217425, 175399665, 192104395, 268946153, 292332775, 411652275, 576313185, 806838459, 876998325, 960521975, 1344730765, 2881565925, 4034192295, 6723653825, 20170961475]

約数ペア:

[(1, 20170961475), (3, 6723653825), (5, 4034192295), (7, 2881565925), (15, 1344730765), (21, 960521975), (23, 876998325), (25, 806838459), (35, 576313185), (49, 411652275), (69, 292332775), (75, 268946153), (105, 192104395), (115, 175399665), (147, 137217425), (161, 125285475), (175, 115262637), (245, 82330455), (345, 58466555), (483, 41761825), (525, 38420879), (575, 35079933), (735, 27443485), (805, 25057095), (1127, 17897925), (1225, 16466091), (1725, 11693311), (2415, 8352365), (3381, 5965975), (3675, 5488697), (4025, 5011419), (5635, 3579585), (12075, 1670473), (16905, 1193195), (28175, 715917), (84525, 238639)]