129639640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{67}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 324127440

約数和(自身を除く): 194487800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 67, 104, 122, 130, 134, 244, 260, 268, 305, 335, 488, 520, 536, 610, 670, 793, 871, 1220, 1340, 1586, 1742, 2440, 2680, 3172, 3484, 3721, 3965, 4087, 4355, 6344, 6968, 7442, 7930, 8174, 8710, 14884, 15860, 16348, 17420, 18605, 20435, 29768, 31720, 32696, 34840, 37210, 40870, 48373, 53131, 74420, 81740, 96746, 106262, 148840, 163480, 193492, 212524, 241865, 249307, 265655, 386984, 425048, 483730, 498614, 531310, 967460, 997228, 1062620, 1246535, 1934920, 1994456, 2125240, 2493070, 3240991, 4986140, 6481982, 9972280, 12963964, 16204955, 25927928, 32409910, 64819820, 129639640]

約数ペア:

[(1, 129639640), (2, 64819820), (4, 32409910), (5, 25927928), (8, 16204955), (10, 12963964), (13, 9972280), (20, 6481982), (26, 4986140), (40, 3240991), (52, 2493070), (61, 2125240), (65, 1994456), (67, 1934920), (104, 1246535), (122, 1062620), (130, 997228), (134, 967460), (244, 531310), (260, 498614), (268, 483730), (305, 425048), (335, 386984), (488, 265655), (520, 249307), (536, 241865), (610, 212524), (670, 193492), (793, 163480), (871, 148840), (1220, 106262), (1340, 96746), (1586, 81740), (1742, 74420), (2440, 53131), (2680, 48373), (3172, 40870), (3484, 37210), (3721, 34840), (3965, 32696), (4087, 31720), (4355, 29768), (6344, 20435), (6968, 18605), (7442, 17420), (7930, 16348), (8174, 15860), (8710, 14884)]