28942160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1637}}^1$

素因数の和:1680

約数の個数: 80

約数和(自身を含む): 76776336

約数和(自身を除く): 47834176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1637, 1768, 2210, 3274, 3536, 4420, 6548, 8185, 8840, 13096, 16370, 17680, 21281, 26192, 27829, 32740, 42562, 55658, 65480, 85124, 106405, 111316, 130960, 139145, 170248, 212810, 222632, 278290, 340496, 361777, 425620, 445264, 556580, 723554, 851240, 1113160, 1447108, 1702480, 1808885, 2226320, 2894216, 3617770, 5788432, 7235540, 14471080, 28942160]

約数ペア:

[(1, 28942160), (2, 14471080), (4, 7235540), (5, 5788432), (8, 3617770), (10, 2894216), (13, 2226320), (16, 1808885), (17, 1702480), (20, 1447108), (26, 1113160), (34, 851240), (40, 723554), (52, 556580), (65, 445264), (68, 425620), (80, 361777), (85, 340496), (104, 278290), (130, 222632), (136, 212810), (170, 170248), (208, 139145), (221, 130960), (260, 111316), (272, 106405), (340, 85124), (442, 65480), (520, 55658), (680, 42562), (884, 32740), (1040, 27829), (1105, 26192), (1360, 21281), (1637, 17680), (1768, 16370), (2210, 13096), (3274, 8840), (3536, 8185), (4420, 6548)]