28239760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 69281280

約数和(自身を除く): 41041520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 59, 62, 80, 118, 124, 155, 193, 236, 248, 295, 310, 386, 472, 496, 590, 620, 772, 944, 965, 1180, 1240, 1544, 1829, 1930, 2360, 2480, 3088, 3658, 3860, 4720, 5983, 7316, 7720, 9145, 11387, 11966, 14632, 15440, 18290, 22774, 23932, 29264, 29915, 36580, 45548, 47864, 56935, 59830, 73160, 91096, 95728, 113870, 119660, 146320, 182192, 227740, 239320, 352997, 455480, 478640, 705994, 910960, 1411988, 1764985, 2823976, 3529970, 5647952, 7059940, 14119880, 28239760]

約数ペア:

[(1, 28239760), (2, 14119880), (4, 7059940), (5, 5647952), (8, 3529970), (10, 2823976), (16, 1764985), (20, 1411988), (31, 910960), (40, 705994), (59, 478640), (62, 455480), (80, 352997), (118, 239320), (124, 227740), (155, 182192), (193, 146320), (236, 119660), (248, 113870), (295, 95728), (310, 91096), (386, 73160), (472, 59830), (496, 56935), (590, 47864), (620, 45548), (772, 36580), (944, 29915), (965, 29264), (1180, 23932), (1240, 22774), (1544, 18290), (1829, 15440), (1930, 14632), (2360, 11966), (2480, 11387), (3088, 9145), (3658, 7720), (3860, 7316), (4720, 5983)]