28221900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 94993920

約数和(自身を除く): 66772020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 89, 100, 105, 140, 150, 151, 175, 178, 210, 267, 300, 302, 350, 356, 420, 445, 453, 525, 534, 604, 623, 700, 755, 890, 906, 1050, 1057, 1068, 1246, 1335, 1510, 1780, 1812, 1869, 2100, 2114, 2225, 2265, 2492, 2670, 3020, 3115, 3171, 3738, 3775, 4228, 4450, 4530, 5285, 5340, 6230, 6342, 6675, 7476, 7550, 8900, 9060, 9345, 10570, 11325, 12460, 12684, 13350, 13439, 15100, 15575, 15855, 18690, 21140, 22650, 26425, 26700, 26878, 31150, 31710, 37380, 40317, 45300, 46725, 52850, 53756, 62300, 63420, 67195, 79275, 80634, 93450, 94073, 105700, 134390, 158550, 161268, 186900, 188146, 201585, 268780, 282219, 317100, 335975, 376292, 403170, 470365, 564438, 671950, 806340, 940730, 1007925, 1128876, 1343900, 1411095, 1881460, 2015850, 2351825, 2822190, 4031700, 4703650, 5644380, 7055475, 9407300, 14110950, 28221900]

約数ペア:

[(1, 28221900), (2, 14110950), (3, 9407300), (4, 7055475), (5, 5644380), (6, 4703650), (7, 4031700), (10, 2822190), (12, 2351825), (14, 2015850), (15, 1881460), (20, 1411095), (21, 1343900), (25, 1128876), (28, 1007925), (30, 940730), (35, 806340), (42, 671950), (50, 564438), (60, 470365), (70, 403170), (75, 376292), (84, 335975), (89, 317100), (100, 282219), (105, 268780), (140, 201585), (150, 188146), (151, 186900), (175, 161268), (178, 158550), (210, 134390), (267, 105700), (300, 94073), (302, 93450), (350, 80634), (356, 79275), (420, 67195), (445, 63420), (453, 62300), (525, 53756), (534, 52850), (604, 46725), (623, 45300), (700, 40317), (755, 37380), (890, 31710), (906, 31150), (1050, 26878), (1057, 26700), (1068, 26425), (1246, 22650), (1335, 21140), (1510, 18690), (1780, 15855), (1812, 15575), (1869, 15100), (2100, 13439), (2114, 13350), (2225, 12684), (2265, 12460), (2492, 11325), (2670, 10570), (3020, 9345), (3115, 9060), (3171, 8900), (3738, 7550), (3775, 7476), (4228, 6675), (4450, 6342), (4530, 6230), (5285, 5340)]