613860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 1853376

約数和(自身を除く): 1239516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 787, 1574, 2361, 3148, 3935, 4722, 7870, 9444, 10231, 11805, 15740, 20462, 23610, 30693, 40924, 47220, 51155, 61386, 102310, 122772, 153465, 204620, 306930, 613860]

約数ペア:

[(1, 613860), (2, 306930), (3, 204620), (4, 153465), (5, 122772), (6, 102310), (10, 61386), (12, 51155), (13, 47220), (15, 40924), (20, 30693), (26, 23610), (30, 20462), (39, 15740), (52, 11805), (60, 10231), (65, 9444), (78, 7870), (130, 4722), (156, 3935), (195, 3148), (260, 2361), (390, 1574), (780, 787)]