81933280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3581}}^1$

素因数の和:3620

約数の個数: 96

約数和(自身を含む): 227471328

約数和(自身を除く): 145538048

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1760, 2080, 2288, 2860, 3581, 4576, 5720, 7162, 11440, 14324, 17905, 22880, 28648, 35810, 39391, 46553, 57296, 71620, 78782, 93106, 114592, 143240, 157564, 186212, 196955, 232765, 286480, 315128, 372424, 393910, 465530, 512083, 572960, 630256, 744848, 787820, 931060, 1024166, 1260512, 1489696, 1575640, 1862120, 2048332, 2560415, 3151280, 3724240, 4096664, 5120830, 6302560, 7448480, 8193328, 10241660, 16386656, 20483320, 40966640, 81933280]

約数ペア:

[(1, 81933280), (2, 40966640), (4, 20483320), (5, 16386656), (8, 10241660), (10, 8193328), (11, 7448480), (13, 6302560), (16, 5120830), (20, 4096664), (22, 3724240), (26, 3151280), (32, 2560415), (40, 2048332), (44, 1862120), (52, 1575640), (55, 1489696), (65, 1260512), (80, 1024166), (88, 931060), (104, 787820), (110, 744848), (130, 630256), (143, 572960), (160, 512083), (176, 465530), (208, 393910), (220, 372424), (260, 315128), (286, 286480), (352, 232765), (416, 196955), (440, 186212), (520, 157564), (572, 143240), (715, 114592), (880, 93106), (1040, 78782), (1144, 71620), (1430, 57296), (1760, 46553), (2080, 39391), (2288, 35810), (2860, 28648), (3581, 22880), (4576, 17905), (5720, 14324), (7162, 11440)]