217804580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:561

約数の個数: 96

約数和(自身を含む): 541900800

約数和(自身を除く): 324096220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 79, 94, 140, 158, 188, 235, 316, 329, 395, 419, 470, 553, 658, 790, 838, 940, 1106, 1316, 1580, 1645, 1676, 2095, 2212, 2765, 2933, 3290, 3713, 4190, 5530, 5866, 6580, 7426, 8380, 11060, 11732, 14665, 14852, 18565, 19693, 25991, 29330, 33101, 37130, 39386, 51982, 58660, 66202, 74260, 78772, 98465, 103964, 129955, 132404, 137851, 165505, 196930, 231707, 259910, 275702, 331010, 393860, 463414, 519820, 551404, 662020, 689255, 926828, 1158535, 1378510, 1555747, 2317070, 2757020, 3111494, 4634140, 6222988, 7778735, 10890229, 15557470, 21780458, 31114940, 43560916, 54451145, 108902290, 217804580]

約数ペア:

[(1, 217804580), (2, 108902290), (4, 54451145), (5, 43560916), (7, 31114940), (10, 21780458), (14, 15557470), (20, 10890229), (28, 7778735), (35, 6222988), (47, 4634140), (70, 3111494), (79, 2757020), (94, 2317070), (140, 1555747), (158, 1378510), (188, 1158535), (235, 926828), (316, 689255), (329, 662020), (395, 551404), (419, 519820), (470, 463414), (553, 393860), (658, 331010), (790, 275702), (838, 259910), (940, 231707), (1106, 196930), (1316, 165505), (1580, 137851), (1645, 132404), (1676, 129955), (2095, 103964), (2212, 98465), (2765, 78772), (2933, 74260), (3290, 66202), (3713, 58660), (4190, 51982), (5530, 39386), (5866, 37130), (6580, 33101), (7426, 29330), (8380, 25991), (11060, 19693), (11732, 18565), (14665, 14852)]