161868420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{128467}}^1$

素因数の和:128489

約数の個数: 72

約数和(自身を含む): 561148224

約数和(自身を除く): 399279804

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, 128467, 256934, 385401, 513868, 642335, 770802, 899269, 1156203, 1284670, 1541604, 1798538, 1927005, 2312406, 2569340, 2697807, 3597076, 3854010, 4496345, 4624812, 5395614, 5781015, 7708020, 8093421, 8992690, 10791228, 11562030, 13489035, 16186842, 17985380, 23124060, 26978070, 32373684, 40467105, 53956140, 80934210, 161868420]

約数ペア:

[(1, 161868420), (2, 80934210), (3, 53956140), (4, 40467105), (5, 32373684), (6, 26978070), (7, 23124060), (9, 17985380), (10, 16186842), (12, 13489035), (14, 11562030), (15, 10791228), (18, 8992690), (20, 8093421), (21, 7708020), (28, 5781015), (30, 5395614), (35, 4624812), (36, 4496345), (42, 3854010), (45, 3597076), (60, 2697807), (63, 2569340), (70, 2312406), (84, 1927005), (90, 1798538), (105, 1541604), (126, 1284670), (140, 1156203), (180, 899269), (210, 770802), (252, 642335), (315, 513868), (420, 385401), (630, 256934), (1260, 128467)]