31153220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 77220864

約数和(自身を除く): 46067644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 332, 383, 415, 490, 581, 766, 830, 980, 1162, 1532, 1660, 1915, 2324, 2681, 2905, 3830, 4067, 5362, 5810, 7660, 8134, 10724, 11620, 13405, 16268, 18767, 20335, 26810, 31789, 37534, 40670, 53620, 63578, 75068, 81340, 93835, 127156, 158945, 187670, 222523, 317890, 375340, 445046, 635780, 890092, 1112615, 1557661, 2225230, 3115322, 4450460, 6230644, 7788305, 15576610, 31153220]

約数ペア:

[(1, 31153220), (2, 15576610), (4, 7788305), (5, 6230644), (7, 4450460), (10, 3115322), (14, 2225230), (20, 1557661), (28, 1112615), (35, 890092), (49, 635780), (70, 445046), (83, 375340), (98, 317890), (140, 222523), (166, 187670), (196, 158945), (245, 127156), (332, 93835), (383, 81340), (415, 75068), (490, 63578), (581, 53620), (766, 40670), (830, 37534), (980, 31789), (1162, 26810), (1532, 20335), (1660, 18767), (1915, 16268), (2324, 13405), (2681, 11620), (2905, 10724), (3830, 8134), (4067, 7660), (5362, 5810)]