221576680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{709}}^1$

素因数の和:1334

約数の個数: 64

約数和(自身を含む): 538549200

約数和(自身を除く): 316972520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 601, 709, 1202, 1418, 2404, 2836, 3005, 3545, 4808, 5672, 6010, 7090, 7813, 9217, 12020, 14180, 15626, 18434, 24040, 28360, 31252, 36868, 39065, 46085, 62504, 73736, 78130, 92170, 156260, 184340, 312520, 368680, 426109, 852218, 1704436, 2130545, 3408872, 4261090, 5539417, 8522180, 11078834, 17044360, 22157668, 27697085, 44315336, 55394170, 110788340, 221576680]

約数ペア:

[(1, 221576680), (2, 110788340), (4, 55394170), (5, 44315336), (8, 27697085), (10, 22157668), (13, 17044360), (20, 11078834), (26, 8522180), (40, 5539417), (52, 4261090), (65, 3408872), (104, 2130545), (130, 1704436), (260, 852218), (520, 426109), (601, 368680), (709, 312520), (1202, 184340), (1418, 156260), (2404, 92170), (2836, 78130), (3005, 73736), (3545, 62504), (4808, 46085), (5672, 39065), (6010, 36868), (7090, 31252), (7813, 28360), (9217, 24040), (12020, 18434), (14180, 15626)]