28819380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^2\times {\mathrm{107}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 82682208

約数和(自身を除く): 53862828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 107, 134, 201, 214, 268, 321, 335, 402, 428, 535, 642, 670, 804, 1005, 1070, 1284, 1340, 1605, 2010, 2140, 3210, 4020, 4489, 6420, 7169, 8978, 13467, 14338, 17956, 21507, 22445, 26934, 28676, 35845, 43014, 44890, 53868, 67335, 71690, 86028, 89780, 107535, 134670, 143380, 215070, 269340, 430140, 480323, 960646, 1440969, 1921292, 2401615, 2881938, 4803230, 5763876, 7204845, 9606460, 14409690, 28819380]

約数ペア:

[(1, 28819380), (2, 14409690), (3, 9606460), (4, 7204845), (5, 5763876), (6, 4803230), (10, 2881938), (12, 2401615), (15, 1921292), (20, 1440969), (30, 960646), (60, 480323), (67, 430140), (107, 269340), (134, 215070), (201, 143380), (214, 134670), (268, 107535), (321, 89780), (335, 86028), (402, 71690), (428, 67335), (535, 53868), (642, 44890), (670, 43014), (804, 35845), (1005, 28676), (1070, 26934), (1284, 22445), (1340, 21507), (1605, 17956), (2010, 14338), (2140, 13467), (3210, 8978), (4020, 7169), (4489, 6420)]