20453790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{563}}^1$

素因数の和:753

約数の個数: 64

約数和(自身を含む): 56526336

約数和(自身を除く): 36072546

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 173, 210, 346, 519, 563, 865, 1038, 1126, 1211, 1689, 1730, 2422, 2595, 2815, 3378, 3633, 3941, 5190, 5630, 6055, 7266, 7882, 8445, 11823, 12110, 16890, 18165, 19705, 23646, 36330, 39410, 59115, 97399, 118230, 194798, 292197, 486995, 584394, 681793, 973990, 1363586, 1460985, 2045379, 2921970, 3408965, 4090758, 6817930, 10226895, 20453790]

約数ペア:

[(1, 20453790), (2, 10226895), (3, 6817930), (5, 4090758), (6, 3408965), (7, 2921970), (10, 2045379), (14, 1460985), (15, 1363586), (21, 973990), (30, 681793), (35, 584394), (42, 486995), (70, 292197), (105, 194798), (173, 118230), (210, 97399), (346, 59115), (519, 39410), (563, 36330), (865, 23646), (1038, 19705), (1126, 18165), (1211, 16890), (1689, 12110), (1730, 11823), (2422, 8445), (2595, 7882), (2815, 7266), (3378, 6055), (3633, 5630), (3941, 5190)]