81185416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 169646400

約数和(自身を除く): 88460984

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 101, 104, 118, 131, 202, 236, 262, 404, 472, 524, 767, 808, 1048, 1313, 1534, 1703, 2626, 3068, 3406, 5252, 5959, 6136, 6812, 7729, 10504, 11918, 13231, 13624, 15458, 23836, 26462, 30916, 47672, 52924, 61832, 77467, 100477, 105848, 154934, 172003, 200954, 309868, 344006, 401908, 619736, 688012, 780629, 803816, 1376024, 1561258, 3122516, 6245032, 10148177, 20296354, 40592708, 81185416]

約数ペア:

[(1, 81185416), (2, 40592708), (4, 20296354), (8, 10148177), (13, 6245032), (26, 3122516), (52, 1561258), (59, 1376024), (101, 803816), (104, 780629), (118, 688012), (131, 619736), (202, 401908), (236, 344006), (262, 309868), (404, 200954), (472, 172003), (524, 154934), (767, 105848), (808, 100477), (1048, 77467), (1313, 61832), (1534, 52924), (1703, 47672), (2626, 30916), (3068, 26462), (3406, 23836), (5252, 15458), (5959, 13624), (6136, 13231), (6812, 11918), (7729, 10504)]