261037360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1682

約数の個数: 80

約数和(自身を含む): 636244992

約数和(自身を除く): 375207632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 496, 536, 620, 670, 1072, 1240, 1340, 1571, 2077, 2480, 2680, 3142, 4154, 5360, 6284, 7855, 8308, 10385, 12568, 15710, 16616, 20770, 25136, 31420, 33232, 41540, 48701, 62840, 83080, 97402, 105257, 125680, 166160, 194804, 210514, 243505, 389608, 421028, 487010, 526285, 779216, 842056, 974020, 1052570, 1684112, 1948040, 2105140, 3262967, 3896080, 4210280, 6525934, 8420560, 13051868, 16314835, 26103736, 32629670, 52207472, 65259340, 130518680, 261037360]

約数ペア:

[(1, 261037360), (2, 130518680), (4, 65259340), (5, 52207472), (8, 32629670), (10, 26103736), (16, 16314835), (20, 13051868), (31, 8420560), (40, 6525934), (62, 4210280), (67, 3896080), (80, 3262967), (124, 2105140), (134, 1948040), (155, 1684112), (248, 1052570), (268, 974020), (310, 842056), (335, 779216), (496, 526285), (536, 487010), (620, 421028), (670, 389608), (1072, 243505), (1240, 210514), (1340, 194804), (1571, 166160), (2077, 125680), (2480, 105257), (2680, 97402), (3142, 83080), (4154, 62840), (5360, 48701), (6284, 41540), (7855, 33232), (8308, 31420), (10385, 25136), (12568, 20770), (15710, 16616)]