28056080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:588

約数の個数: 80

約数和(自身を含む): 71714160

約数和(自身を除く): 43658080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 509, 520, 530, 689, 848, 1018, 1040, 1060, 1378, 2036, 2120, 2545, 2756, 3445, 4072, 4240, 5090, 5512, 6617, 6890, 8144, 10180, 11024, 13234, 13780, 20360, 26468, 26977, 27560, 33085, 40720, 52936, 53954, 55120, 66170, 105872, 107908, 132340, 134885, 215816, 264680, 269770, 350701, 431632, 529360, 539540, 701402, 1079080, 1402804, 1753505, 2158160, 2805608, 3507010, 5611216, 7014020, 14028040, 28056080]

約数ペア:

[(1, 28056080), (2, 14028040), (4, 7014020), (5, 5611216), (8, 3507010), (10, 2805608), (13, 2158160), (16, 1753505), (20, 1402804), (26, 1079080), (40, 701402), (52, 539540), (53, 529360), (65, 431632), (80, 350701), (104, 269770), (106, 264680), (130, 215816), (208, 134885), (212, 132340), (260, 107908), (265, 105872), (424, 66170), (509, 55120), (520, 53954), (530, 52936), (689, 40720), (848, 33085), (1018, 27560), (1040, 26977), (1060, 26468), (1378, 20360), (2036, 13780), (2120, 13234), (2545, 11024), (2756, 10180), (3445, 8144), (4072, 6890), (4240, 6617), (5090, 5512)]