28133680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 69995520

約数和(自身を除く): 41861840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 223, 304, 332, 380, 415, 446, 664, 760, 830, 892, 1115, 1328, 1520, 1577, 1660, 1784, 2230, 3154, 3320, 3568, 4237, 4460, 6308, 6640, 7885, 8474, 8920, 12616, 15770, 16948, 17840, 18509, 21185, 25232, 31540, 33896, 37018, 42370, 63080, 67792, 74036, 84740, 92545, 126160, 148072, 169480, 185090, 296144, 338960, 351671, 370180, 703342, 740360, 1406684, 1480720, 1758355, 2813368, 3516710, 5626736, 7033420, 14066840, 28133680]

約数ペア:

[(1, 28133680), (2, 14066840), (4, 7033420), (5, 5626736), (8, 3516710), (10, 2813368), (16, 1758355), (19, 1480720), (20, 1406684), (38, 740360), (40, 703342), (76, 370180), (80, 351671), (83, 338960), (95, 296144), (152, 185090), (166, 169480), (190, 148072), (223, 126160), (304, 92545), (332, 84740), (380, 74036), (415, 67792), (446, 63080), (664, 42370), (760, 37018), (830, 33896), (892, 31540), (1115, 25232), (1328, 21185), (1520, 18509), (1577, 17840), (1660, 16948), (1784, 15770), (2230, 12616), (3154, 8920), (3320, 8474), (3568, 7885), (4237, 6640), (4460, 6308)]