131809640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 308880000

約数和(自身を除く): 177070360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 199, 232, 290, 398, 571, 580, 796, 995, 1142, 1160, 1592, 1990, 2284, 2855, 3980, 4568, 5710, 5771, 7960, 11420, 11542, 16559, 22840, 23084, 28855, 33118, 46168, 57710, 66236, 82795, 113629, 115420, 132472, 165590, 227258, 230840, 331180, 454516, 568145, 662360, 909032, 1136290, 2272580, 3295241, 4545160, 6590482, 13180964, 16476205, 26361928, 32952410, 65904820, 131809640]

約数ペア:

[(1, 131809640), (2, 65904820), (4, 32952410), (5, 26361928), (8, 16476205), (10, 13180964), (20, 6590482), (29, 4545160), (40, 3295241), (58, 2272580), (116, 1136290), (145, 909032), (199, 662360), (232, 568145), (290, 454516), (398, 331180), (571, 230840), (580, 227258), (796, 165590), (995, 132472), (1142, 115420), (1160, 113629), (1592, 82795), (1990, 66236), (2284, 57710), (2855, 46168), (3980, 33118), (4568, 28855), (5710, 23084), (5771, 22840), (7960, 16559), (11420, 11542)]