218845430

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 421687296

約数和(自身を除く): 202841866

約数列:

[1, 2, 5, 10, 31, 61, 62, 71, 122, 142, 155, 163, 305, 310, 326, 355, 610, 710, 815, 1630, 1891, 2201, 3782, 4331, 4402, 5053, 8662, 9455, 9943, 10106, 11005, 11573, 18910, 19886, 21655, 22010, 23146, 25265, 43310, 49715, 50530, 57865, 99430, 115730, 134261, 268522, 308233, 358763, 616466, 671305, 705953, 717526, 1342610, 1411906, 1541165, 1793815, 3082330, 3529765, 3587630, 7059530, 21884543, 43769086, 109422715, 218845430]

約数ペア:

[(1, 218845430), (2, 109422715), (5, 43769086), (10, 21884543), (31, 7059530), (61, 3587630), (62, 3529765), (71, 3082330), (122, 1793815), (142, 1541165), (155, 1411906), (163, 1342610), (305, 717526), (310, 705953), (326, 671305), (355, 616466), (610, 358763), (710, 308233), (815, 268522), (1630, 134261), (1891, 115730), (2201, 99430), (3782, 57865), (4331, 50530), (4402, 49715), (5053, 43310), (8662, 25265), (9455, 23146), (9943, 22010), (10106, 21655), (11005, 19886), (11573, 18910)]