71443840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:340

約数の個数: 128

約数和(自身を含む): 190552320

約数和(自身を除く): 119108480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 277, 310, 320, 403, 416, 496, 520, 554, 620, 640, 806, 832, 992, 1040, 1108, 1240, 1385, 1612, 1664, 1984, 2015, 2080, 2216, 2480, 2770, 3224, 3601, 3968, 4030, 4160, 4432, 4960, 5540, 6448, 7202, 8060, 8320, 8587, 8864, 9920, 11080, 12896, 14404, 16120, 17174, 17728, 18005, 19840, 22160, 25792, 28808, 32240, 34348, 35456, 36010, 42935, 44320, 51584, 57616, 64480, 68696, 72020, 85870, 88640, 111631, 115232, 128960, 137392, 144040, 171740, 177280, 223262, 230464, 257920, 274784, 288080, 343480, 446524, 460928, 549568, 558155, 576160, 686960, 893048, 1099136, 1116310, 1152320, 1373920, 1786096, 2232620, 2304640, 2747840, 3572192, 4465240, 5495680, 7144384, 8930480, 14288768, 17860960, 35721920, 71443840]

約数ペア:

[(1, 71443840), (2, 35721920), (4, 17860960), (5, 14288768), (8, 8930480), (10, 7144384), (13, 5495680), (16, 4465240), (20, 3572192), (26, 2747840), (31, 2304640), (32, 2232620), (40, 1786096), (52, 1373920), (62, 1152320), (64, 1116310), (65, 1099136), (80, 893048), (104, 686960), (124, 576160), (128, 558155), (130, 549568), (155, 460928), (160, 446524), (208, 343480), (248, 288080), (260, 274784), (277, 257920), (310, 230464), (320, 223262), (403, 177280), (416, 171740), (496, 144040), (520, 137392), (554, 128960), (620, 115232), (640, 111631), (806, 88640), (832, 85870), (992, 72020), (1040, 68696), (1108, 64480), (1240, 57616), (1385, 51584), (1612, 44320), (1664, 42935), (1984, 36010), (2015, 35456), (2080, 34348), (2216, 32240), (2480, 28808), (2770, 25792), (3224, 22160), (3601, 19840), (3968, 18005), (4030, 17728), (4160, 17174), (4432, 16120), (4960, 14404), (5540, 12896), (6448, 11080), (7202, 9920), (8060, 8864), (8320, 8587)]