129815240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 302054400

約数和(自身を除く): 172239160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 239, 296, 367, 370, 478, 734, 740, 956, 1195, 1468, 1480, 1835, 1912, 2390, 2936, 3670, 4780, 7340, 8843, 9560, 13579, 14680, 17686, 27158, 35372, 44215, 54316, 67895, 70744, 87713, 88430, 108632, 135790, 175426, 176860, 271580, 350852, 353720, 438565, 543160, 701704, 877130, 1754260, 3245381, 3508520, 6490762, 12981524, 16226905, 25963048, 32453810, 64907620, 129815240]

約数ペア:

[(1, 129815240), (2, 64907620), (4, 32453810), (5, 25963048), (8, 16226905), (10, 12981524), (20, 6490762), (37, 3508520), (40, 3245381), (74, 1754260), (148, 877130), (185, 701704), (239, 543160), (296, 438565), (367, 353720), (370, 350852), (478, 271580), (734, 176860), (740, 175426), (956, 135790), (1195, 108632), (1468, 88430), (1480, 87713), (1835, 70744), (1912, 67895), (2390, 54316), (2936, 44215), (3670, 35372), (4780, 27158), (7340, 17686), (8843, 14680), (9560, 13579)]