64989100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 108

約数和(自身を含む): 160005384

約数和(自身を除く): 95016284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 121, 131, 164, 205, 220, 242, 262, 275, 410, 451, 484, 524, 550, 605, 655, 820, 902, 1025, 1100, 1210, 1310, 1441, 1804, 2050, 2255, 2420, 2620, 2882, 3025, 3275, 4100, 4510, 4961, 5371, 5764, 6050, 6550, 7205, 9020, 9922, 10742, 11275, 12100, 13100, 14410, 15851, 19844, 21484, 22550, 24805, 26855, 28820, 31702, 36025, 45100, 49610, 53710, 59081, 63404, 72050, 79255, 99220, 107420, 118162, 124025, 134275, 144100, 158510, 236324, 248050, 268550, 295405, 317020, 396275, 496100, 537100, 590810, 649891, 792550, 1181620, 1299782, 1477025, 1585100, 2599564, 2954050, 3249455, 5908100, 6498910, 12997820, 16247275, 32494550, 64989100]

約数ペア:

[(1, 64989100), (2, 32494550), (4, 16247275), (5, 12997820), (10, 6498910), (11, 5908100), (20, 3249455), (22, 2954050), (25, 2599564), (41, 1585100), (44, 1477025), (50, 1299782), (55, 1181620), (82, 792550), (100, 649891), (110, 590810), (121, 537100), (131, 496100), (164, 396275), (205, 317020), (220, 295405), (242, 268550), (262, 248050), (275, 236324), (410, 158510), (451, 144100), (484, 134275), (524, 124025), (550, 118162), (605, 107420), (655, 99220), (820, 79255), (902, 72050), (1025, 63404), (1100, 59081), (1210, 53710), (1310, 49610), (1441, 45100), (1804, 36025), (2050, 31702), (2255, 28820), (2420, 26855), (2620, 24805), (2882, 22550), (3025, 21484), (3275, 19844), (4100, 15851), (4510, 14410), (4961, 13100), (5371, 12100), (5764, 11275), (6050, 10742), (6550, 9922), (7205, 9020)]