39996840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25639}}^1$

素因数の和:25666

約数の個数: 64

約数和(自身を含む): 129225600

約数和(自身を除く): 89228760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 25639, 51278, 76917, 102556, 128195, 153834, 205112, 256390, 307668, 333307, 384585, 512780, 615336, 666614, 769170, 999921, 1025560, 1333228, 1538340, 1666535, 1999842, 2666456, 3076680, 3333070, 3999684, 4999605, 6666140, 7999368, 9999210, 13332280, 19998420, 39996840]

約数ペア:

[(1, 39996840), (2, 19998420), (3, 13332280), (4, 9999210), (5, 7999368), (6, 6666140), (8, 4999605), (10, 3999684), (12, 3333070), (13, 3076680), (15, 2666456), (20, 1999842), (24, 1666535), (26, 1538340), (30, 1333228), (39, 1025560), (40, 999921), (52, 769170), (60, 666614), (65, 615336), (78, 512780), (104, 384585), (120, 333307), (130, 307668), (156, 256390), (195, 205112), (260, 153834), (312, 128195), (390, 102556), (520, 76917), (780, 51278), (1560, 25639)]