25438910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 56954880

約数和(自身を除く): 31515970

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 190, 217, 266, 310, 434, 589, 617, 665, 1085, 1178, 1234, 1330, 2170, 2945, 3085, 4123, 4319, 5890, 6170, 8246, 8638, 11723, 19127, 20615, 21595, 23446, 38254, 41230, 43190, 58615, 82061, 95635, 117230, 133889, 164122, 191270, 267778, 363413, 410305, 669445, 726826, 820610, 1338890, 1817065, 2543891, 3634130, 5087782, 12719455, 25438910]

約数ペア:

[(1, 25438910), (2, 12719455), (5, 5087782), (7, 3634130), (10, 2543891), (14, 1817065), (19, 1338890), (31, 820610), (35, 726826), (38, 669445), (62, 410305), (70, 363413), (95, 267778), (133, 191270), (155, 164122), (190, 133889), (217, 117230), (266, 95635), (310, 82061), (434, 58615), (589, 43190), (617, 41230), (665, 38254), (1085, 23446), (1178, 21595), (1234, 20615), (1330, 19127), (2170, 11723), (2945, 8638), (3085, 8246), (4123, 6170), (4319, 5890)]