20909940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3257}}^1$

素因数の和:3376

約数の個数: 48

約数和(自身を含む): 59113152

約数和(自身を除く): 38203212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3210, 3257, 6420, 6514, 9771, 13028, 16285, 19542, 32570, 39084, 48855, 65140, 97710, 195420, 348499, 696998, 1045497, 1393996, 1742495, 2090994, 3484990, 4181988, 5227485, 6969980, 10454970, 20909940]

約数ペア:

[(1, 20909940), (2, 10454970), (3, 6969980), (4, 5227485), (5, 4181988), (6, 3484990), (10, 2090994), (12, 1742495), (15, 1393996), (20, 1045497), (30, 696998), (60, 348499), (107, 195420), (214, 97710), (321, 65140), (428, 48855), (535, 39084), (642, 32570), (1070, 19542), (1284, 16285), (1605, 13028), (2140, 9771), (3210, 6514), (3257, 6420)]