257284560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82463}}^1$

素因数の和:82492

約数の個数: 80

約数和(自身を含む): 858945024

約数和(自身を除く): 601660464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 82463, 164926, 247389, 329852, 412315, 494778, 659704, 824630, 989556, 1072019, 1236945, 1319408, 1649260, 1979112, 2144038, 2473890, 3216057, 3298520, 3958224, 4288076, 4947780, 5360095, 6432114, 6597040, 8576152, 9895560, 10720190, 12864228, 16080285, 17152304, 19791120, 21440380, 25728456, 32160570, 42880760, 51456912, 64321140, 85761520, 128642280, 257284560]

約数ペア:

[(1, 257284560), (2, 128642280), (3, 85761520), (4, 64321140), (5, 51456912), (6, 42880760), (8, 32160570), (10, 25728456), (12, 21440380), (13, 19791120), (15, 17152304), (16, 16080285), (20, 12864228), (24, 10720190), (26, 9895560), (30, 8576152), (39, 6597040), (40, 6432114), (48, 5360095), (52, 4947780), (60, 4288076), (65, 3958224), (78, 3298520), (80, 3216057), (104, 2473890), (120, 2144038), (130, 1979112), (156, 1649260), (195, 1319408), (208, 1236945), (240, 1072019), (260, 989556), (312, 824630), (390, 659704), (520, 494778), (624, 412315), (780, 329852), (1040, 247389), (1560, 164926), (3120, 82463)]