71340820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 162644328

約数和(自身を除く): 91303508

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 241, 361, 380, 410, 482, 722, 779, 820, 964, 1205, 1444, 1558, 1805, 2410, 3116, 3610, 3895, 4579, 4820, 7220, 7790, 9158, 9881, 14801, 15580, 18316, 19762, 22895, 29602, 39524, 45790, 49405, 59204, 74005, 87001, 91580, 98810, 148010, 174002, 187739, 197620, 296020, 348004, 375478, 435005, 750956, 870010, 938695, 1740020, 1877390, 3567041, 3754780, 7134082, 14268164, 17835205, 35670410, 71340820]

約数ペア:

[(1, 71340820), (2, 35670410), (4, 17835205), (5, 14268164), (10, 7134082), (19, 3754780), (20, 3567041), (38, 1877390), (41, 1740020), (76, 938695), (82, 870010), (95, 750956), (164, 435005), (190, 375478), (205, 348004), (241, 296020), (361, 197620), (380, 187739), (410, 174002), (482, 148010), (722, 98810), (779, 91580), (820, 87001), (964, 74005), (1205, 59204), (1444, 49405), (1558, 45790), (1805, 39524), (2410, 29602), (3116, 22895), (3610, 19762), (3895, 18316), (4579, 15580), (4820, 14801), (7220, 9881), (7790, 9158)]