64535440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{27817}}^1$

素因数の和:27859

約数の個数: 40

約数和(自身を含む): 155224440

約数和(自身を除く): 90689000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 27817, 55634, 111268, 139085, 222536, 278170, 445072, 556340, 806693, 1112680, 1613386, 2225360, 3226772, 4033465, 6453544, 8066930, 12907088, 16133860, 32267720, 64535440]

約数ペア:

[(1, 64535440), (2, 32267720), (4, 16133860), (5, 12907088), (8, 8066930), (10, 6453544), (16, 4033465), (20, 3226772), (29, 2225360), (40, 1613386), (58, 1112680), (80, 806693), (116, 556340), (145, 445072), (232, 278170), (290, 222536), (464, 139085), (580, 111268), (1160, 55634), (2320, 27817)]