378767960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{677}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 869901120

約数和(自身を除く): 491133160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 197, 284, 355, 394, 568, 677, 710, 788, 985, 1354, 1420, 1576, 1970, 2708, 2840, 3385, 3940, 5416, 6770, 7880, 13540, 13987, 27080, 27974, 48067, 55948, 69935, 96134, 111896, 133369, 139870, 192268, 240335, 266738, 279740, 384536, 480670, 533476, 559480, 666845, 961340, 1066952, 1333690, 1922680, 2667380, 5334760, 9469199, 18938398, 37876796, 47345995, 75753592, 94691990, 189383980, 378767960]

約数ペア:

[(1, 378767960), (2, 189383980), (4, 94691990), (5, 75753592), (8, 47345995), (10, 37876796), (20, 18938398), (40, 9469199), (71, 5334760), (142, 2667380), (197, 1922680), (284, 1333690), (355, 1066952), (394, 961340), (568, 666845), (677, 559480), (710, 533476), (788, 480670), (985, 384536), (1354, 279740), (1420, 266738), (1576, 240335), (1970, 192268), (2708, 139870), (2840, 133369), (3385, 111896), (3940, 96134), (5416, 69935), (6770, 55948), (7880, 48067), (13540, 27974), (13987, 27080)]