20121199660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2963}}^1\times {\mathrm{19973}}^1$

素因数の和:22962

約数の個数: 48

約数和(自身を含む): 44757419616

約数和(自身を除く): 24636219956

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2963, 5926, 11852, 14815, 19973, 29630, 39946, 50371, 59260, 79892, 99865, 100742, 199730, 201484, 251855, 339541, 399460, 503710, 679082, 1007420, 1358164, 1697705, 3395410, 6790820, 59179999, 118359998, 236719996, 295899995, 591799990, 1006059983, 1183599980, 2012119966, 4024239932, 5030299915, 10060599830, 20121199660]

約数ペア:

[(1, 20121199660), (2, 10060599830), (4, 5030299915), (5, 4024239932), (10, 2012119966), (17, 1183599980), (20, 1006059983), (34, 591799990), (68, 295899995), (85, 236719996), (170, 118359998), (340, 59179999), (2963, 6790820), (5926, 3395410), (11852, 1697705), (14815, 1358164), (19973, 1007420), (29630, 679082), (39946, 503710), (50371, 399460), (59260, 339541), (79892, 251855), (99865, 201484), (100742, 199730)]