75939980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{421}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 165896640

約数和(自身を除く): 89956660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 311, 421, 580, 622, 842, 1244, 1555, 1684, 2105, 3110, 4210, 6220, 8420, 9019, 12209, 18038, 24418, 36076, 45095, 48836, 61045, 90190, 122090, 130931, 180380, 244180, 261862, 523724, 654655, 1309310, 2618620, 3796999, 7593998, 15187996, 18984995, 37969990, 75939980]

約数ペア:

[(1, 75939980), (2, 37969990), (4, 18984995), (5, 15187996), (10, 7593998), (20, 3796999), (29, 2618620), (58, 1309310), (116, 654655), (145, 523724), (290, 261862), (311, 244180), (421, 180380), (580, 130931), (622, 122090), (842, 90190), (1244, 61045), (1555, 48836), (1684, 45095), (2105, 36076), (3110, 24418), (4210, 18038), (6220, 12209), (8420, 9019)]