20753926040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{883}}^1\times {\mathrm{15881}}^1$

素因数の和:16812

約数の個数: 64

約数和(自身を含む): 48015732960

約数和(自身を除く): 27261806920

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 883, 1480, 1766, 3532, 4415, 7064, 8830, 15881, 17660, 31762, 32671, 35320, 63524, 65342, 79405, 127048, 130684, 158810, 163355, 261368, 317620, 326710, 587597, 635240, 653420, 1175194, 1306840, 2350388, 2937985, 4700776, 5875970, 11751940, 14022923, 23503880, 28045846, 56091692, 70114615, 112183384, 140229230, 280458460, 518848151, 560916920, 1037696302, 2075392604, 2594240755, 4150785208, 5188481510, 10376963020, 20753926040]

約数ペア:

[(1, 20753926040), (2, 10376963020), (4, 5188481510), (5, 4150785208), (8, 2594240755), (10, 2075392604), (20, 1037696302), (37, 560916920), (40, 518848151), (74, 280458460), (148, 140229230), (185, 112183384), (296, 70114615), (370, 56091692), (740, 28045846), (883, 23503880), (1480, 14022923), (1766, 11751940), (3532, 5875970), (4415, 4700776), (7064, 2937985), (8830, 2350388), (15881, 1306840), (17660, 1175194), (31762, 653420), (32671, 635240), (35320, 587597), (63524, 326710), (65342, 317620), (79405, 261368), (127048, 163355), (130684, 158810)]