4262840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 10368000

約数和(自身を除く): 6105160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 79, 95, 142, 152, 158, 190, 284, 316, 355, 380, 395, 568, 632, 710, 760, 790, 1349, 1420, 1501, 1580, 2698, 2840, 3002, 3160, 5396, 5609, 6004, 6745, 7505, 10792, 11218, 12008, 13490, 15010, 22436, 26980, 28045, 30020, 44872, 53960, 56090, 60040, 106571, 112180, 213142, 224360, 426284, 532855, 852568, 1065710, 2131420, 4262840]

約数ペア:

[(1, 4262840), (2, 2131420), (4, 1065710), (5, 852568), (8, 532855), (10, 426284), (19, 224360), (20, 213142), (38, 112180), (40, 106571), (71, 60040), (76, 56090), (79, 53960), (95, 44872), (142, 30020), (152, 28045), (158, 26980), (190, 22436), (284, 15010), (316, 13490), (355, 12008), (380, 11218), (395, 10792), (568, 7505), (632, 6745), (710, 6004), (760, 5609), (790, 5396), (1349, 3160), (1420, 3002), (1501, 2840), (1580, 2698)]