7940442920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1\times {\mathrm{10909}}^1$

素因数の和:11538

約数の個数: 64

約数和(自身を含む): 18475430400

約数和(自身を除く): 10534987480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 587, 620, 1174, 1240, 2348, 2935, 4696, 5870, 10909, 11740, 18197, 21818, 23480, 36394, 43636, 54545, 72788, 87272, 90985, 109090, 145576, 181970, 218180, 338179, 363940, 436360, 676358, 727880, 1352716, 1690895, 2705432, 3381790, 6403583, 6763580, 12807166, 13527160, 25614332, 32017915, 51228664, 64035830, 128071660, 198511073, 256143320, 397022146, 794044292, 992555365, 1588088584, 1985110730, 3970221460, 7940442920]

約数ペア:

[(1, 7940442920), (2, 3970221460), (4, 1985110730), (5, 1588088584), (8, 992555365), (10, 794044292), (20, 397022146), (31, 256143320), (40, 198511073), (62, 128071660), (124, 64035830), (155, 51228664), (248, 32017915), (310, 25614332), (587, 13527160), (620, 12807166), (1174, 6763580), (1240, 6403583), (2348, 3381790), (2935, 2705432), (4696, 1690895), (5870, 1352716), (10909, 727880), (11740, 676358), (18197, 436360), (21818, 363940), (23480, 338179), (36394, 218180), (43636, 181970), (54545, 145576), (72788, 109090), (87272, 90985)]