138599320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 324577440

約数和(自身を除く): 185978120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 860, 1220, 1321, 1720, 2440, 2623, 2642, 5246, 5284, 6605, 10492, 10568, 13115, 13210, 20984, 26230, 26420, 52460, 52840, 56803, 80581, 104920, 113606, 161162, 227212, 284015, 322324, 402905, 454424, 568030, 644648, 805810, 1136060, 1611620, 2272120, 3223240, 3464983, 6929966, 13859932, 17324915, 27719864, 34649830, 69299660, 138599320]

約数ペア:

[(1, 138599320), (2, 69299660), (4, 34649830), (5, 27719864), (8, 17324915), (10, 13859932), (20, 6929966), (40, 3464983), (43, 3223240), (61, 2272120), (86, 1611620), (122, 1136060), (172, 805810), (215, 644648), (244, 568030), (305, 454424), (344, 402905), (430, 322324), (488, 284015), (610, 227212), (860, 161162), (1220, 113606), (1321, 104920), (1720, 80581), (2440, 56803), (2623, 52840), (2642, 52460), (5246, 26420), (5284, 26230), (6605, 20984), (10492, 13210), (10568, 13115)]