1689220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 3916080

約数和(自身を除く): 2226860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 89, 130, 146, 178, 260, 292, 356, 365, 445, 730, 890, 949, 1157, 1460, 1780, 1898, 2314, 3796, 4628, 4745, 5785, 6497, 9490, 11570, 12994, 18980, 23140, 25988, 32485, 64970, 84461, 129940, 168922, 337844, 422305, 844610, 1689220]

約数ペア:

[(1, 1689220), (2, 844610), (4, 422305), (5, 337844), (10, 168922), (13, 129940), (20, 84461), (26, 64970), (52, 32485), (65, 25988), (73, 23140), (89, 18980), (130, 12994), (146, 11570), (178, 9490), (260, 6497), (292, 5785), (356, 4745), (365, 4628), (445, 3796), (730, 2314), (890, 1898), (949, 1780), (1157, 1460)]