1181440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 3090528

約数和(自身を除く): 1909088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 104, 128, 130, 142, 160, 208, 256, 260, 284, 320, 355, 416, 520, 568, 640, 710, 832, 923, 1040, 1136, 1280, 1420, 1664, 1846, 2080, 2272, 2840, 3328, 3692, 4160, 4544, 4615, 5680, 7384, 8320, 9088, 9230, 11360, 14768, 16640, 18176, 18460, 22720, 29536, 36920, 45440, 59072, 73840, 90880, 118144, 147680, 236288, 295360, 590720, 1181440]

約数ペア:

[(1, 1181440), (2, 590720), (4, 295360), (5, 236288), (8, 147680), (10, 118144), (13, 90880), (16, 73840), (20, 59072), (26, 45440), (32, 36920), (40, 29536), (52, 22720), (64, 18460), (65, 18176), (71, 16640), (80, 14768), (104, 11360), (128, 9230), (130, 9088), (142, 8320), (160, 7384), (208, 5680), (256, 4615), (260, 4544), (284, 4160), (320, 3692), (355, 3328), (416, 2840), (520, 2272), (568, 2080), (640, 1846), (710, 1664), (832, 1420), (923, 1280), (1040, 1136)]