28465990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1$

素因数の和:1309

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 36852410

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 70, 85, 95, 119, 133, 170, 190, 238, 266, 323, 595, 646, 665, 1190, 1259, 1330, 1615, 2261, 2518, 3230, 4522, 6295, 8813, 11305, 12590, 17626, 21403, 22610, 23921, 42806, 44065, 47842, 88130, 107015, 119605, 149821, 167447, 214030, 239210, 299642, 334894, 406657, 749105, 813314, 837235, 1498210, 1674470, 2033285, 2846599, 4066570, 5693198, 14232995, 28465990]

約数ペア:

[(1, 28465990), (2, 14232995), (5, 5693198), (7, 4066570), (10, 2846599), (14, 2033285), (17, 1674470), (19, 1498210), (34, 837235), (35, 813314), (38, 749105), (70, 406657), (85, 334894), (95, 299642), (119, 239210), (133, 214030), (170, 167447), (190, 149821), (238, 119605), (266, 107015), (323, 88130), (595, 47842), (646, 44065), (665, 42806), (1190, 23921), (1259, 22610), (1330, 21403), (1615, 17626), (2261, 12590), (2518, 11305), (3230, 8813), (4522, 6295)]