438401900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2521}}^1$

素因数の和:2619

約数の個数: 72

約数和(自身を含む): 998227776

約数和(自身を除く): 559825876

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 47, 50, 74, 94, 100, 148, 185, 188, 235, 370, 470, 740, 925, 940, 1175, 1739, 1850, 2350, 2521, 3478, 3700, 4700, 5042, 6956, 8695, 10084, 12605, 17390, 25210, 34780, 43475, 50420, 63025, 86950, 93277, 118487, 126050, 173900, 186554, 236974, 252100, 373108, 466385, 473948, 592435, 932770, 1184870, 1865540, 2331925, 2369740, 2962175, 4384019, 4663850, 5924350, 8768038, 9327700, 11848700, 17536076, 21920095, 43840190, 87680380, 109600475, 219200950, 438401900]

約数ペア:

[(1, 438401900), (2, 219200950), (4, 109600475), (5, 87680380), (10, 43840190), (20, 21920095), (25, 17536076), (37, 11848700), (47, 9327700), (50, 8768038), (74, 5924350), (94, 4663850), (100, 4384019), (148, 2962175), (185, 2369740), (188, 2331925), (235, 1865540), (370, 1184870), (470, 932770), (740, 592435), (925, 473948), (940, 466385), (1175, 373108), (1739, 252100), (1850, 236974), (2350, 186554), (2521, 173900), (3478, 126050), (3700, 118487), (4700, 93277), (5042, 86950), (6956, 63025), (8695, 50420), (10084, 43475), (12605, 34780), (17390, 25210)]