128765640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1307}}^1$

素因数の和:2142

約数の個数: 64

約数和(自身を含む): 387063360

約数和(自身を除く): 258297720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 821, 1307, 1642, 2463, 2614, 3284, 3921, 4105, 4926, 5228, 6535, 6568, 7842, 8210, 9852, 10456, 12315, 13070, 15684, 16420, 19605, 19704, 24630, 26140, 31368, 32840, 39210, 49260, 52280, 78420, 98520, 156840, 1073047, 2146094, 3219141, 4292188, 5365235, 6438282, 8584376, 10730470, 12876564, 16095705, 21460940, 25753128, 32191410, 42921880, 64382820, 128765640]

約数ペア:

[(1, 128765640), (2, 64382820), (3, 42921880), (4, 32191410), (5, 25753128), (6, 21460940), (8, 16095705), (10, 12876564), (12, 10730470), (15, 8584376), (20, 6438282), (24, 5365235), (30, 4292188), (40, 3219141), (60, 2146094), (120, 1073047), (821, 156840), (1307, 98520), (1642, 78420), (2463, 52280), (2614, 49260), (3284, 39210), (3921, 32840), (4105, 31368), (4926, 26140), (5228, 24630), (6535, 19704), (6568, 19605), (7842, 16420), (8210, 15684), (9852, 13070), (10456, 12315)]