21304800010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1\times {\mathrm{19319}}^1$

素因数の和:19855

約数の個数: 64

約数和(自身を含む): 43817760000

約数和(自身を除く): 22512959990

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 499, 998, 1105, 2210, 2495, 4990, 6487, 8483, 12974, 16966, 19319, 32435, 38638, 42415, 64870, 84830, 96595, 110279, 193190, 220558, 251147, 328423, 502294, 551395, 656846, 1102790, 1255735, 1642115, 2511470, 3284230, 4269499, 8538998, 9640181, 19280362, 21347495, 42694990, 48200905, 96401810, 125322353, 163883077, 250644706, 327766154, 626611765, 819415385, 1253223530, 1638830770, 2130480001, 4260960002, 10652400005, 21304800010]

約数ペア:

[(1, 21304800010), (2, 10652400005), (5, 4260960002), (10, 2130480001), (13, 1638830770), (17, 1253223530), (26, 819415385), (34, 626611765), (65, 327766154), (85, 250644706), (130, 163883077), (170, 125322353), (221, 96401810), (442, 48200905), (499, 42694990), (998, 21347495), (1105, 19280362), (2210, 9640181), (2495, 8538998), (4990, 4269499), (6487, 3284230), (8483, 2511470), (12974, 1642115), (16966, 1255735), (19319, 1102790), (32435, 656846), (38638, 551395), (42415, 502294), (64870, 328423), (84830, 251147), (96595, 220558), (110279, 193190)]