20672208

素因数分解:

$2^4\times 3^2\times {\mathrm{89}}^1\times {\mathrm{1613}}^1$

素因数の和:1716

約数の個数: 60

約数和(自身を含む): 58539780

約数和(自身を除く): 37867572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 89, 144, 178, 267, 356, 534, 712, 801, 1068, 1424, 1602, 1613, 2136, 3204, 3226, 4272, 4839, 6408, 6452, 9678, 12816, 12904, 14517, 19356, 25808, 29034, 38712, 58068, 77424, 116136, 143557, 232272, 287114, 430671, 574228, 861342, 1148456, 1292013, 1722684, 2296912, 2584026, 3445368, 5168052, 6890736, 10336104, 20672208]

約数ペア:

[(1, 20672208), (2, 10336104), (3, 6890736), (4, 5168052), (6, 3445368), (8, 2584026), (9, 2296912), (12, 1722684), (16, 1292013), (18, 1148456), (24, 861342), (36, 574228), (48, 430671), (72, 287114), (89, 232272), (144, 143557), (178, 116136), (267, 77424), (356, 58068), (534, 38712), (712, 29034), (801, 25808), (1068, 19356), (1424, 14517), (1602, 12904), (1613, 12816), (2136, 9678), (3204, 6452), (3226, 6408), (4272, 4839)]