19959780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3109}}^1$

素因数の和:3228

約数の個数: 48

約数和(自身を含む): 56427840

約数和(自身を除く): 36468060

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, 3109, 3210, 6218, 6420, 9327, 12436, 15545, 18654, 31090, 37308, 46635, 62180, 93270, 186540, 332663, 665326, 997989, 1330652, 1663315, 1995978, 3326630, 3991956, 4989945, 6653260, 9979890, 19959780]

約数ペア:

[(1, 19959780), (2, 9979890), (3, 6653260), (4, 4989945), (5, 3991956), (6, 3326630), (10, 1995978), (12, 1663315), (15, 1330652), (20, 997989), (30, 665326), (60, 332663), (107, 186540), (214, 93270), (321, 62180), (428, 46635), (535, 37308), (642, 31090), (1070, 18654), (1284, 15545), (1605, 12436), (2140, 9327), (3109, 6420), (3210, 6218)]