64163540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 157975272

約数和(自身を除く): 93811732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 233, 245, 281, 466, 490, 562, 932, 980, 1124, 1165, 1405, 1631, 1967, 2330, 2810, 3262, 3934, 4660, 5620, 6524, 7868, 8155, 9835, 11417, 13769, 16310, 19670, 22834, 27538, 32620, 39340, 45668, 55076, 57085, 65473, 68845, 114170, 130946, 137690, 228340, 261892, 275380, 327365, 458311, 654730, 916622, 1309460, 1833244, 2291555, 3208177, 4583110, 6416354, 9166220, 12832708, 16040885, 32081770, 64163540]

約数ペア:

[(1, 64163540), (2, 32081770), (4, 16040885), (5, 12832708), (7, 9166220), (10, 6416354), (14, 4583110), (20, 3208177), (28, 2291555), (35, 1833244), (49, 1309460), (70, 916622), (98, 654730), (140, 458311), (196, 327365), (233, 275380), (245, 261892), (281, 228340), (466, 137690), (490, 130946), (562, 114170), (932, 68845), (980, 65473), (1124, 57085), (1165, 55076), (1405, 45668), (1631, 39340), (1967, 32620), (2330, 27538), (2810, 22834), (3262, 19670), (3934, 16310), (4660, 13769), (5620, 11417), (6524, 9835), (7868, 8155)]