81957590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1617

約数の個数: 64

約数和(自身を含む): 178113600

約数和(自身を除く): 96156010

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 130, 143, 185, 286, 370, 407, 481, 715, 814, 962, 1430, 1549, 2035, 2405, 3098, 4070, 4810, 5291, 7745, 10582, 15490, 17039, 20137, 26455, 34078, 40274, 52910, 57313, 85195, 100685, 114626, 170390, 201370, 221507, 286565, 443014, 573130, 630443, 745069, 1107535, 1260886, 1490138, 2215070, 3152215, 3725345, 6304430, 7450690, 8195759, 16391518, 40978795, 81957590]

約数ペア:

[(1, 81957590), (2, 40978795), (5, 16391518), (10, 8195759), (11, 7450690), (13, 6304430), (22, 3725345), (26, 3152215), (37, 2215070), (55, 1490138), (65, 1260886), (74, 1107535), (110, 745069), (130, 630443), (143, 573130), (185, 443014), (286, 286565), (370, 221507), (407, 201370), (481, 170390), (715, 114626), (814, 100685), (962, 85195), (1430, 57313), (1549, 52910), (2035, 40274), (2405, 34078), (3098, 26455), (4070, 20137), (4810, 17039), (5291, 15490), (7745, 10582)]