1390346720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{1241381}}^1$

素因数の和:1241403

約数の個数: 48

約数和(自身を含む): 3753939168

約数和(自身を除く): 2363592448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 1241381, 2482762, 4965524, 6206905, 8689667, 9931048, 12413810, 17379334, 19862096, 24827620, 34758668, 39724192, 43448335, 49655240, 69517336, 86896670, 99310480, 139034672, 173793340, 198620960, 278069344, 347586680, 695173360, 1390346720]

約数ペア:

[(1, 1390346720), (2, 695173360), (4, 347586680), (5, 278069344), (7, 198620960), (8, 173793340), (10, 139034672), (14, 99310480), (16, 86896670), (20, 69517336), (28, 49655240), (32, 43448335), (35, 39724192), (40, 34758668), (56, 24827620), (70, 19862096), (80, 17379334), (112, 12413810), (140, 9931048), (160, 8689667), (224, 6206905), (280, 4965524), (560, 2482762), (1120, 1241381)]