1298804560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1\times {\mathrm{1103}}^1$

素因数の和:1516

約数の個数: 80

約数和(自身を含む): 3104801280

約数和(自身を除く): 1805996720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 359, 410, 656, 718, 820, 1103, 1436, 1640, 1795, 2206, 2872, 3280, 3590, 4412, 5515, 5744, 7180, 8824, 11030, 14360, 14719, 17648, 22060, 28720, 29438, 44120, 45223, 58876, 73595, 88240, 90446, 117752, 147190, 180892, 226115, 235504, 294380, 361784, 395977, 452230, 588760, 723568, 791954, 904460, 1177520, 1583908, 1808920, 1979885, 3167816, 3617840, 3959770, 6335632, 7919540, 15839080, 16235057, 31678160, 32470114, 64940228, 81175285, 129880456, 162350570, 259760912, 324701140, 649402280, 1298804560]

約数ペア:

[(1, 1298804560), (2, 649402280), (4, 324701140), (5, 259760912), (8, 162350570), (10, 129880456), (16, 81175285), (20, 64940228), (40, 32470114), (41, 31678160), (80, 16235057), (82, 15839080), (164, 7919540), (205, 6335632), (328, 3959770), (359, 3617840), (410, 3167816), (656, 1979885), (718, 1808920), (820, 1583908), (1103, 1177520), (1436, 904460), (1640, 791954), (1795, 723568), (2206, 588760), (2872, 452230), (3280, 395977), (3590, 361784), (4412, 294380), (5515, 235504), (5744, 226115), (7180, 180892), (8824, 147190), (11030, 117752), (14360, 90446), (14719, 88240), (17648, 73595), (22060, 58876), (28720, 45223), (29438, 44120)]