20201407820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{11491}}^1$

素因数の和:11703

約数の個数: 96

約数和(自身を含む): 47401466112

約数和(自身を除く): 27200058292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 131, 220, 244, 262, 305, 524, 610, 655, 671, 1220, 1310, 1342, 1441, 2620, 2684, 2882, 3355, 5764, 6710, 7205, 7991, 11491, 13420, 14410, 15982, 22982, 28820, 31964, 39955, 45964, 57455, 79910, 87901, 114910, 126401, 159820, 175802, 229820, 252802, 351604, 439505, 505604, 632005, 700951, 879010, 1264010, 1401902, 1505321, 1758020, 2528020, 2803804, 3010642, 3504755, 6021284, 7009510, 7526605, 7710461, 14019020, 15053210, 15420922, 16558531, 30106420, 30841844, 33117062, 38552305, 66234124, 77104610, 82792655, 91824581, 154209220, 165585310, 183649162, 331170620, 367298324, 459122905, 918245810, 1010070391, 1836491620, 2020140782, 4040281564, 5050351955, 10100703910, 20201407820]

約数ペア:

[(1, 20201407820), (2, 10100703910), (4, 5050351955), (5, 4040281564), (10, 2020140782), (11, 1836491620), (20, 1010070391), (22, 918245810), (44, 459122905), (55, 367298324), (61, 331170620), (110, 183649162), (122, 165585310), (131, 154209220), (220, 91824581), (244, 82792655), (262, 77104610), (305, 66234124), (524, 38552305), (610, 33117062), (655, 30841844), (671, 30106420), (1220, 16558531), (1310, 15420922), (1342, 15053210), (1441, 14019020), (2620, 7710461), (2684, 7526605), (2882, 7009510), (3355, 6021284), (5764, 3504755), (6710, 3010642), (7205, 2803804), (7991, 2528020), (11491, 1758020), (13420, 1505321), (14410, 1401902), (15982, 1264010), (22982, 879010), (28820, 700951), (31964, 632005), (39955, 505604), (45964, 439505), (57455, 351604), (79910, 252802), (87901, 229820), (114910, 175802), (126401, 159820)]