87955980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29917}}^1$

素因数の和:29943

約数の個数: 72

約数和(自身を含む): 286494768

約数和(自身を除く): 198538788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 29917, 59834, 89751, 119668, 149585, 179502, 209419, 299170, 359004, 418838, 448755, 598340, 628257, 837676, 897510, 1047095, 1256514, 1465933, 1795020, 2094190, 2513028, 2931866, 3141285, 4188380, 4397799, 5863732, 6282570, 7329665, 8795598, 12565140, 14659330, 17591196, 21988995, 29318660, 43977990, 87955980]

約数ペア:

[(1, 87955980), (2, 43977990), (3, 29318660), (4, 21988995), (5, 17591196), (6, 14659330), (7, 12565140), (10, 8795598), (12, 7329665), (14, 6282570), (15, 5863732), (20, 4397799), (21, 4188380), (28, 3141285), (30, 2931866), (35, 2513028), (42, 2094190), (49, 1795020), (60, 1465933), (70, 1256514), (84, 1047095), (98, 897510), (105, 837676), (140, 628257), (147, 598340), (196, 448755), (210, 418838), (245, 359004), (294, 299170), (420, 209419), (490, 179502), (588, 149585), (735, 119668), (980, 89751), (1470, 59834), (2940, 29917)]