2221020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{457}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 7001904

約数和(自身を除く): 4780884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 457, 486, 540, 810, 914, 972, 1215, 1371, 1620, 1828, 2285, 2430, 2742, 4113, 4570, 4860, 5484, 6855, 8226, 9140, 12339, 13710, 16452, 20565, 24678, 27420, 37017, 41130, 49356, 61695, 74034, 82260, 111051, 123390, 148068, 185085, 222102, 246780, 370170, 444204, 555255, 740340, 1110510, 2221020]

約数ペア:

[(1, 2221020), (2, 1110510), (3, 740340), (4, 555255), (5, 444204), (6, 370170), (9, 246780), (10, 222102), (12, 185085), (15, 148068), (18, 123390), (20, 111051), (27, 82260), (30, 74034), (36, 61695), (45, 49356), (54, 41130), (60, 37017), (81, 27420), (90, 24678), (108, 20565), (135, 16452), (162, 13710), (180, 12339), (243, 9140), (270, 8226), (324, 6855), (405, 5484), (457, 4860), (486, 4570), (540, 4113), (810, 2742), (914, 2430), (972, 2285), (1215, 1828), (1371, 1620)]