31685220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{25147}}^1$

素因数の和:25169

約数の個数: 72

約数和(自身を含む): 109846464

約数和(自身を除く): 78161244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 25147, 50294, 75441, 100588, 125735, 150882, 176029, 226323, 251470, 301764, 352058, 377205, 452646, 502940, 528087, 704116, 754410, 880145, 905292, 1056174, 1131615, 1508820, 1584261, 1760290, 2112348, 2263230, 2640435, 3168522, 3520580, 4526460, 5280870, 6337044, 7921305, 10561740, 15842610, 31685220]

約数ペア:

[(1, 31685220), (2, 15842610), (3, 10561740), (4, 7921305), (5, 6337044), (6, 5280870), (7, 4526460), (9, 3520580), (10, 3168522), (12, 2640435), (14, 2263230), (15, 2112348), (18, 1760290), (20, 1584261), (21, 1508820), (28, 1131615), (30, 1056174), (35, 905292), (36, 880145), (42, 754410), (45, 704116), (60, 528087), (63, 502940), (70, 452646), (84, 377205), (90, 352058), (105, 301764), (126, 251470), (140, 226323), (180, 176029), (210, 150882), (252, 125735), (315, 100588), (420, 75441), (630, 50294), (1260, 25147)]