18648740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 27316060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 37, 44, 55, 58, 74, 79, 110, 116, 145, 148, 158, 185, 220, 290, 316, 319, 370, 395, 407, 580, 638, 740, 790, 814, 869, 1073, 1276, 1580, 1595, 1628, 1738, 2035, 2146, 2291, 2923, 3190, 3476, 4070, 4292, 4345, 4582, 5365, 5846, 6380, 8140, 8690, 9164, 10730, 11455, 11692, 11803, 14615, 17380, 21460, 22910, 23606, 25201, 29230, 32153, 45820, 47212, 50402, 58460, 59015, 64306, 84767, 100804, 118030, 126005, 128612, 160765, 169534, 236060, 252010, 321530, 339068, 423835, 504020, 643060, 847670, 932437, 1695340, 1864874, 3729748, 4662185, 9324370, 18648740]

約数ペア:

[(1, 18648740), (2, 9324370), (4, 4662185), (5, 3729748), (10, 1864874), (11, 1695340), (20, 932437), (22, 847670), (29, 643060), (37, 504020), (44, 423835), (55, 339068), (58, 321530), (74, 252010), (79, 236060), (110, 169534), (116, 160765), (145, 128612), (148, 126005), (158, 118030), (185, 100804), (220, 84767), (290, 64306), (316, 59015), (319, 58460), (370, 50402), (395, 47212), (407, 45820), (580, 32153), (638, 29230), (740, 25201), (790, 23606), (814, 22910), (869, 21460), (1073, 17380), (1276, 14615), (1580, 11803), (1595, 11692), (1628, 11455), (1738, 10730), (2035, 9164), (2146, 8690), (2291, 8140), (2923, 6380), (3190, 5846), (3476, 5365), (4070, 4582), (4292, 4345)]