20178070120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{937}}^1\times {\mathrm{41413}}^1$

素因数の和:42374

約数の個数: 64

約数和(自身を含む): 48946378320

約数和(自身を除く): 28768308200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 937, 1874, 3748, 4685, 7496, 9370, 12181, 18740, 24362, 37480, 41413, 48724, 60905, 82826, 97448, 121810, 165652, 207065, 243620, 331304, 414130, 487240, 538369, 828260, 1076738, 1656520, 2153476, 2691845, 4306952, 5383690, 10767380, 21534760, 38803981, 77607962, 155215924, 194019905, 310431848, 388039810, 504451753, 776079620, 1008903506, 1552159240, 2017807012, 2522258765, 4035614024, 5044517530, 10089035060, 20178070120]

約数ペア:

[(1, 20178070120), (2, 10089035060), (4, 5044517530), (5, 4035614024), (8, 2522258765), (10, 2017807012), (13, 1552159240), (20, 1008903506), (26, 776079620), (40, 504451753), (52, 388039810), (65, 310431848), (104, 194019905), (130, 155215924), (260, 77607962), (520, 38803981), (937, 21534760), (1874, 10767380), (3748, 5383690), (4685, 4306952), (7496, 2691845), (9370, 2153476), (12181, 1656520), (18740, 1076738), (24362, 828260), (37480, 538369), (41413, 487240), (48724, 414130), (60905, 331304), (82826, 243620), (97448, 207065), (121810, 165652)]