890708220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{260441}}^1$

素因数の和:260475

約数の個数: 72

約数和(自身を含む): 2844026640

約数和(自身を除く): 1953318420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 260441, 520882, 781323, 1041764, 1302205, 1562646, 2343969, 2604410, 3125292, 3906615, 4687938, 4948379, 5208820, 7813230, 9375876, 9896758, 11719845, 14845137, 15626460, 19793516, 23439690, 24741895, 29690274, 44535411, 46879380, 49483790, 59380548, 74225685, 89070822, 98967580, 148451370, 178141644, 222677055, 296902740, 445354110, 890708220]

約数ペア:

[(1, 890708220), (2, 445354110), (3, 296902740), (4, 222677055), (5, 178141644), (6, 148451370), (9, 98967580), (10, 89070822), (12, 74225685), (15, 59380548), (18, 49483790), (19, 46879380), (20, 44535411), (30, 29690274), (36, 24741895), (38, 23439690), (45, 19793516), (57, 15626460), (60, 14845137), (76, 11719845), (90, 9896758), (95, 9375876), (114, 7813230), (171, 5208820), (180, 4948379), (190, 4687938), (228, 3906615), (285, 3125292), (342, 2604410), (380, 2343969), (570, 1562646), (684, 1302205), (855, 1041764), (1140, 781323), (1710, 520882), (3420, 260441)]