19916760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{617}}^1$

素因数の和:900

約数の個数: 64

約数和(自身を含む): 60069600

約数和(自身を除く): 40152840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 269, 538, 617, 807, 1076, 1234, 1345, 1614, 1851, 2152, 2468, 2690, 3085, 3228, 3702, 4035, 4936, 5380, 6170, 6456, 7404, 8070, 9255, 10760, 12340, 14808, 16140, 18510, 24680, 32280, 37020, 74040, 165973, 331946, 497919, 663892, 829865, 995838, 1327784, 1659730, 1991676, 2489595, 3319460, 3983352, 4979190, 6638920, 9958380, 19916760]

約数ペア:

[(1, 19916760), (2, 9958380), (3, 6638920), (4, 4979190), (5, 3983352), (6, 3319460), (8, 2489595), (10, 1991676), (12, 1659730), (15, 1327784), (20, 995838), (24, 829865), (30, 663892), (40, 497919), (60, 331946), (120, 165973), (269, 74040), (538, 37020), (617, 32280), (807, 24680), (1076, 18510), (1234, 16140), (1345, 14808), (1614, 12340), (1851, 10760), (2152, 9255), (2468, 8070), (2690, 7404), (3085, 6456), (3228, 6170), (3702, 5380), (4035, 4936)]