19764290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{587}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 45045504

約数和(自身を除く): 25281214

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 587, 910, 962, 1174, 1295, 2405, 2590, 2935, 3367, 4109, 4810, 5870, 6734, 7631, 8218, 15262, 16835, 20545, 21719, 33670, 38155, 41090, 43438, 53417, 76310, 106834, 108595, 152033, 217190, 267085, 282347, 304066, 534170, 564694, 760165, 1411735, 1520330, 1976429, 2823470, 3952858, 9882145, 19764290]

約数ペア:

[(1, 19764290), (2, 9882145), (5, 3952858), (7, 2823470), (10, 1976429), (13, 1520330), (14, 1411735), (26, 760165), (35, 564694), (37, 534170), (65, 304066), (70, 282347), (74, 267085), (91, 217190), (130, 152033), (182, 108595), (185, 106834), (259, 76310), (370, 53417), (455, 43438), (481, 41090), (518, 38155), (587, 33670), (910, 21719), (962, 20545), (1174, 16835), (1295, 15262), (2405, 8218), (2590, 7631), (2935, 6734), (3367, 5870), (4109, 4810)]