5428400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 60

約数和(自身を含む): 13400184

約数和(自身を除く): 7971784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 331, 400, 410, 656, 662, 820, 1025, 1324, 1640, 1655, 2050, 2648, 3280, 3310, 4100, 5296, 6620, 8200, 8275, 13240, 13571, 16400, 16550, 26480, 27142, 33100, 54284, 66200, 67855, 108568, 132400, 135710, 217136, 271420, 339275, 542840, 678550, 1085680, 1357100, 2714200, 5428400]

約数ペア:

[(1, 5428400), (2, 2714200), (4, 1357100), (5, 1085680), (8, 678550), (10, 542840), (16, 339275), (20, 271420), (25, 217136), (40, 135710), (41, 132400), (50, 108568), (80, 67855), (82, 66200), (100, 54284), (164, 33100), (200, 27142), (205, 26480), (328, 16550), (331, 16400), (400, 13571), (410, 13240), (656, 8275), (662, 8200), (820, 6620), (1025, 5296), (1324, 4100), (1640, 3310), (1655, 3280), (2050, 2648)]