281485207600

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1021}}^1\times {\mathrm{11299}}^1$

素因数の和:12399

約数の個数: 120

約数和(自身を含む): 688088685200

約数和(自身を除く): 406603477600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 976, 1021, 1220, 1525, 2042, 2440, 3050, 4084, 4880, 5105, 6100, 8168, 10210, 11299, 12200, 16336, 20420, 22598, 24400, 25525, 40840, 45196, 51050, 56495, 62281, 81680, 90392, 102100, 112990, 124562, 180784, 204200, 225980, 249124, 282475, 311405, 408400, 451960, 498248, 564950, 622810, 689239, 903920, 996496, 1129900, 1245620, 1378478, 1557025, 2259800, 2491240, 2756956, 3114050, 3446195, 4519600, 4982480, 5513912, 6228100, 6892390, 11027824, 11536279, 12456200, 13784780, 17230975, 23072558, 24912400, 27569560, 34461950, 46145116, 55139120, 57681395, 68923900, 92290232, 115362790, 137847800, 184580464, 230725580, 275695600, 288406975, 461451160, 576813950, 703713019, 922902320, 1153627900, 1407426038, 2307255800, 2814852076, 3518565095, 4614511600, 5629704152, 7037130190, 11259408304, 14074260380, 17592825475, 28148520760, 35185650950, 56297041520, 70371301900, 140742603800, 281485207600]

約数ペア:

[(1, 281485207600), (2, 140742603800), (4, 70371301900), (5, 56297041520), (8, 35185650950), (10, 28148520760), (16, 17592825475), (20, 14074260380), (25, 11259408304), (40, 7037130190), (50, 5629704152), (61, 4614511600), (80, 3518565095), (100, 2814852076), (122, 2307255800), (200, 1407426038), (244, 1153627900), (305, 922902320), (400, 703713019), (488, 576813950), (610, 461451160), (976, 288406975), (1021, 275695600), (1220, 230725580), (1525, 184580464), (2042, 137847800), (2440, 115362790), (3050, 92290232), (4084, 68923900), (4880, 57681395), (5105, 55139120), (6100, 46145116), (8168, 34461950), (10210, 27569560), (11299, 24912400), (12200, 23072558), (16336, 17230975), (20420, 13784780), (22598, 12456200), (24400, 11536279), (25525, 11027824), (40840, 6892390), (45196, 6228100), (51050, 5513912), (56495, 4982480), (62281, 4519600), (81680, 3446195), (90392, 3114050), (102100, 2756956), (112990, 2491240), (124562, 2259800), (180784, 1557025), (204200, 1378478), (225980, 1245620), (249124, 1129900), (282475, 996496), (311405, 903920), (408400, 689239), (451960, 622810), (498248, 564950)]