18587923180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{115067}}^1$

素因数の和:115314

約数の個数: 48

約数和(自身を含む): 40190030496

約数和(自身を除く): 21602107316

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 394, 410, 788, 820, 985, 1970, 3940, 8077, 16154, 32308, 40385, 80770, 115067, 161540, 230134, 460268, 575335, 1150670, 2301340, 4717747, 9435494, 18870988, 22668199, 23588735, 45336398, 47177470, 90672796, 94354940, 113340995, 226681990, 453363980, 929396159, 1858792318, 3717584636, 4646980795, 9293961590, 18587923180]

約数ペア:

[(1, 18587923180), (2, 9293961590), (4, 4646980795), (5, 3717584636), (10, 1858792318), (20, 929396159), (41, 453363980), (82, 226681990), (164, 113340995), (197, 94354940), (205, 90672796), (394, 47177470), (410, 45336398), (788, 23588735), (820, 22668199), (985, 18870988), (1970, 9435494), (3940, 4717747), (8077, 2301340), (16154, 1150670), (32308, 575335), (40385, 460268), (80770, 230134), (115067, 161540)]