209217420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4289}}^1$

素因数の和:4575

約数の個数: 72

約数和(自身を含む): 637116480

約数和(自身を除く): 427899060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 1084, 1355, 1626, 2439, 2710, 3252, 4065, 4289, 4878, 5420, 8130, 8578, 9756, 12195, 12867, 16260, 17156, 21445, 24390, 25734, 38601, 42890, 48780, 51468, 64335, 77202, 85780, 128670, 154404, 193005, 257340, 386010, 772020, 1162319, 2324638, 3486957, 4649276, 5811595, 6973914, 10460871, 11623190, 13947828, 17434785, 20921742, 23246380, 34869570, 41843484, 52304355, 69739140, 104608710, 209217420]

約数ペア:

[(1, 209217420), (2, 104608710), (3, 69739140), (4, 52304355), (5, 41843484), (6, 34869570), (9, 23246380), (10, 20921742), (12, 17434785), (15, 13947828), (18, 11623190), (20, 10460871), (30, 6973914), (36, 5811595), (45, 4649276), (60, 3486957), (90, 2324638), (180, 1162319), (271, 772020), (542, 386010), (813, 257340), (1084, 193005), (1355, 154404), (1626, 128670), (2439, 85780), (2710, 77202), (3252, 64335), (4065, 51468), (4289, 48780), (4878, 42890), (5420, 38601), (8130, 25734), (8578, 24390), (9756, 21445), (12195, 17156), (12867, 16260)]