1390885808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{290737}}^1$

素因数の和:290781

約数の個数: 40

約数和(自身を含む): 3028327008

約数和(自身を除く): 1637441200

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4784, 290737, 581474, 1162948, 2325896, 3779581, 4651792, 6686951, 7559162, 13373902, 15118324, 26747804, 30236648, 53495608, 60473296, 86930363, 106991216, 173860726, 347721452, 695442904, 1390885808]

約数ペア:

[(1, 1390885808), (2, 695442904), (4, 347721452), (8, 173860726), (13, 106991216), (16, 86930363), (23, 60473296), (26, 53495608), (46, 30236648), (52, 26747804), (92, 15118324), (104, 13373902), (184, 7559162), (208, 6686951), (299, 4651792), (368, 3779581), (598, 2325896), (1196, 1162948), (2392, 581474), (4784, 290737)]