1900646840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{5197}}^1$

素因数の和:5472

約数の個数: 64

約数和(自身を含む): 4401250560

約数和(自身を除く): 2500603720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 223, 328, 410, 446, 820, 892, 1115, 1640, 1784, 2230, 4460, 5197, 8920, 9143, 10394, 18286, 20788, 25985, 36572, 41576, 45715, 51970, 73144, 91430, 103940, 182860, 207880, 213077, 365720, 426154, 852308, 1065385, 1158931, 1704616, 2130770, 2317862, 4261540, 4635724, 5794655, 8523080, 9271448, 11589310, 23178620, 46357240, 47516171, 95032342, 190064684, 237580855, 380129368, 475161710, 950323420, 1900646840]

約数ペア:

[(1, 1900646840), (2, 950323420), (4, 475161710), (5, 380129368), (8, 237580855), (10, 190064684), (20, 95032342), (40, 47516171), (41, 46357240), (82, 23178620), (164, 11589310), (205, 9271448), (223, 8523080), (328, 5794655), (410, 4635724), (446, 4261540), (820, 2317862), (892, 2130770), (1115, 1704616), (1640, 1158931), (1784, 1065385), (2230, 852308), (4460, 426154), (5197, 365720), (8920, 213077), (9143, 207880), (10394, 182860), (18286, 103940), (20788, 91430), (25985, 73144), (36572, 51970), (41576, 45715)]