328414760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{587}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 754427520

約数和(自身を除く): 426012760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 197, 284, 355, 394, 568, 587, 710, 788, 985, 1174, 1420, 1576, 1970, 2348, 2840, 2935, 3940, 4696, 5870, 7880, 11740, 13987, 23480, 27974, 41677, 55948, 69935, 83354, 111896, 115639, 139870, 166708, 208385, 231278, 279740, 333416, 416770, 462556, 559480, 578195, 833540, 925112, 1156390, 1667080, 2312780, 4625560, 8210369, 16420738, 32841476, 41051845, 65682952, 82103690, 164207380, 328414760]

約数ペア:

[(1, 328414760), (2, 164207380), (4, 82103690), (5, 65682952), (8, 41051845), (10, 32841476), (20, 16420738), (40, 8210369), (71, 4625560), (142, 2312780), (197, 1667080), (284, 1156390), (355, 925112), (394, 833540), (568, 578195), (587, 559480), (710, 462556), (788, 416770), (985, 333416), (1174, 279740), (1420, 231278), (1576, 208385), (1970, 166708), (2348, 139870), (2840, 115639), (2935, 111896), (3940, 83354), (4696, 69935), (5870, 55948), (7880, 41677), (11740, 27974), (13987, 23480)]