12191920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:662

約数の個数: 80

約数和(自身を含む): 32185440

約数和(自身を除く): 19993520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 617, 760, 988, 1040, 1234, 1235, 1520, 1976, 2468, 2470, 3085, 3952, 4936, 4940, 6170, 8021, 9872, 9880, 11723, 12340, 16042, 19760, 23446, 24680, 32084, 40105, 46892, 49360, 58615, 64168, 80210, 93784, 117230, 128336, 152399, 160420, 187568, 234460, 304798, 320840, 468920, 609596, 641680, 761995, 937840, 1219192, 1523990, 2438384, 3047980, 6095960, 12191920]

約数ペア:

[(1, 12191920), (2, 6095960), (4, 3047980), (5, 2438384), (8, 1523990), (10, 1219192), (13, 937840), (16, 761995), (19, 641680), (20, 609596), (26, 468920), (38, 320840), (40, 304798), (52, 234460), (65, 187568), (76, 160420), (80, 152399), (95, 128336), (104, 117230), (130, 93784), (152, 80210), (190, 64168), (208, 58615), (247, 49360), (260, 46892), (304, 40105), (380, 32084), (494, 24680), (520, 23446), (617, 19760), (760, 16042), (988, 12340), (1040, 11723), (1234, 9880), (1235, 9872), (1520, 8021), (1976, 6170), (2468, 4940), (2470, 4936), (3085, 3952)]