374371640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2161}}^1$

素因数の和:2304

約数の個数: 64

約数和(自身を含む): 868605120

約数和(自身を除く): 494233480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 355, 488, 568, 610, 710, 1220, 1420, 2161, 2440, 2840, 4322, 4331, 8644, 8662, 10805, 17288, 17324, 21610, 21655, 34648, 43220, 43310, 86440, 86620, 131821, 153431, 173240, 263642, 306862, 527284, 613724, 659105, 767155, 1054568, 1227448, 1318210, 1534310, 2636420, 3068620, 5272840, 6137240, 9359291, 18718582, 37437164, 46796455, 74874328, 93592910, 187185820, 374371640]

約数ペア:

[(1, 374371640), (2, 187185820), (4, 93592910), (5, 74874328), (8, 46796455), (10, 37437164), (20, 18718582), (40, 9359291), (61, 6137240), (71, 5272840), (122, 3068620), (142, 2636420), (244, 1534310), (284, 1318210), (305, 1227448), (355, 1054568), (488, 767155), (568, 659105), (610, 613724), (710, 527284), (1220, 306862), (1420, 263642), (2161, 173240), (2440, 153431), (2840, 131821), (4322, 86620), (4331, 86440), (8644, 43310), (8662, 43220), (10805, 34648), (17288, 21655), (17324, 21610)]