8704280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 22226400

約数和(自身を除く): 13522120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 881, 988, 1235, 1762, 1976, 2470, 3524, 4405, 4940, 7048, 8810, 9880, 11453, 16739, 17620, 22906, 33478, 35240, 45812, 57265, 66956, 83695, 91624, 114530, 133912, 167390, 217607, 229060, 334780, 435214, 458120, 669560, 870428, 1088035, 1740856, 2176070, 4352140, 8704280]

約数ペア:

[(1, 8704280), (2, 4352140), (4, 2176070), (5, 1740856), (8, 1088035), (10, 870428), (13, 669560), (19, 458120), (20, 435214), (26, 334780), (38, 229060), (40, 217607), (52, 167390), (65, 133912), (76, 114530), (95, 91624), (104, 83695), (130, 66956), (152, 57265), (190, 45812), (247, 35240), (260, 33478), (380, 22906), (494, 17620), (520, 16739), (760, 11453), (881, 9880), (988, 8810), (1235, 7048), (1762, 4940), (1976, 4405), (2470, 3524)]