291913020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{231677}}^1$

素因数の和:231699

約数の個数: 72

約数和(自身を含む): 1011969504

約数和(自身を除く): 720056484

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, 231677, 463354, 695031, 926708, 1158385, 1390062, 1621739, 2085093, 2316770, 2780124, 3243478, 3475155, 4170186, 4633540, 4865217, 6486956, 6950310, 8108695, 8340372, 9730434, 10425465, 13900620, 14595651, 16217390, 19460868, 20850930, 24326085, 29191302, 32434780, 41701860, 48652170, 58382604, 72978255, 97304340, 145956510, 291913020]

約数ペア:

[(1, 291913020), (2, 145956510), (3, 97304340), (4, 72978255), (5, 58382604), (6, 48652170), (7, 41701860), (9, 32434780), (10, 29191302), (12, 24326085), (14, 20850930), (15, 19460868), (18, 16217390), (20, 14595651), (21, 13900620), (28, 10425465), (30, 9730434), (35, 8340372), (36, 8108695), (42, 6950310), (45, 6486956), (60, 4865217), (63, 4633540), (70, 4170186), (84, 3475155), (90, 3243478), (105, 2780124), (126, 2316770), (140, 2085093), (180, 1621739), (210, 1390062), (252, 1158385), (315, 926708), (420, 695031), (630, 463354), (1260, 231677)]