64513280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3877}}^1$

素因数の和:3911

約数の個数: 72

約数和(自身を含む): 166459272

約数和(自身を除く): 101945992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 3877, 4160, 7754, 8320, 15508, 16640, 19385, 31016, 38770, 50401, 62032, 77540, 100802, 124064, 155080, 201604, 248128, 252005, 310160, 403208, 496256, 504010, 620320, 806416, 992512, 1008020, 1240640, 1612832, 2016040, 2481280, 3225664, 4032080, 4962560, 6451328, 8064160, 12902656, 16128320, 32256640, 64513280]

約数ペア:

[(1, 64513280), (2, 32256640), (4, 16128320), (5, 12902656), (8, 8064160), (10, 6451328), (13, 4962560), (16, 4032080), (20, 3225664), (26, 2481280), (32, 2016040), (40, 1612832), (52, 1240640), (64, 1008020), (65, 992512), (80, 806416), (104, 620320), (128, 504010), (130, 496256), (160, 403208), (208, 310160), (256, 252005), (260, 248128), (320, 201604), (416, 155080), (520, 124064), (640, 100802), (832, 77540), (1040, 62032), (1280, 50401), (1664, 38770), (2080, 31016), (3328, 19385), (3877, 16640), (4160, 15508), (7754, 8320)]