138888180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1481}}^1$

素因数の和:2017

約数の個数: 72

約数和(自身を含む): 422387784

約数和(自身を除く): 283499604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 1042, 1481, 1563, 2084, 2605, 2962, 3126, 4443, 4689, 5210, 5924, 6252, 7405, 7815, 8886, 9378, 10420, 13329, 14810, 15630, 17772, 18756, 22215, 23445, 26658, 29620, 31260, 44430, 46890, 53316, 66645, 88860, 93780, 133290, 266580, 771601, 1543202, 2314803, 3086404, 3858005, 4629606, 6944409, 7716010, 9259212, 11574015, 13888818, 15432020, 23148030, 27777636, 34722045, 46296060, 69444090, 138888180]

約数ペア:

[(1, 138888180), (2, 69444090), (3, 46296060), (4, 34722045), (5, 27777636), (6, 23148030), (9, 15432020), (10, 13888818), (12, 11574015), (15, 9259212), (18, 7716010), (20, 6944409), (30, 4629606), (36, 3858005), (45, 3086404), (60, 2314803), (90, 1543202), (180, 771601), (521, 266580), (1042, 133290), (1481, 93780), (1563, 88860), (2084, 66645), (2605, 53316), (2962, 46890), (3126, 44430), (4443, 31260), (4689, 29620), (5210, 26658), (5924, 23445), (6252, 22215), (7405, 18756), (7815, 17772), (8886, 15630), (9378, 14810), (10420, 13329)]