85870720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10321}}^1$

素因数の和:10353

約数の個数: 64

約数和(自身を含む): 221097240

約数和(自身を除く): 135226520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 10321, 20642, 41284, 51605, 82568, 103210, 134173, 165136, 206420, 268346, 330272, 412840, 536692, 660544, 670865, 825680, 1073384, 1321088, 1341730, 1651360, 2146768, 2683460, 3302720, 4293536, 5366920, 6605440, 8587072, 10733840, 17174144, 21467680, 42935360, 85870720]

約数ペア:

[(1, 85870720), (2, 42935360), (4, 21467680), (5, 17174144), (8, 10733840), (10, 8587072), (13, 6605440), (16, 5366920), (20, 4293536), (26, 3302720), (32, 2683460), (40, 2146768), (52, 1651360), (64, 1341730), (65, 1321088), (80, 1073384), (104, 825680), (128, 670865), (130, 660544), (160, 536692), (208, 412840), (260, 330272), (320, 268346), (416, 206420), (520, 165136), (640, 134173), (832, 103210), (1040, 82568), (1664, 51605), (2080, 41284), (4160, 20642), (8320, 10321)]