68531820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163171}}^1$

素因数の和:163190

約数の個数: 48

約数和(自身を含む): 219303168

約数和(自身を除く): 150771348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 163171, 326342, 489513, 652684, 815855, 979026, 1142197, 1631710, 1958052, 2284394, 2447565, 3263420, 3426591, 4568788, 4895130, 5710985, 6853182, 9790260, 11421970, 13706364, 17132955, 22843940, 34265910, 68531820]

約数ペア:

[(1, 68531820), (2, 34265910), (3, 22843940), (4, 17132955), (5, 13706364), (6, 11421970), (7, 9790260), (10, 6853182), (12, 5710985), (14, 4895130), (15, 4568788), (20, 3426591), (21, 3263420), (28, 2447565), (30, 2284394), (35, 1958052), (42, 1631710), (60, 1142197), (70, 979026), (84, 815855), (105, 652684), (140, 489513), (210, 326342), (420, 163171)]