28350760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 66718080

約数和(自身を除く): 38367320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 311, 344, 424, 430, 530, 622, 860, 1060, 1244, 1555, 1720, 2120, 2279, 2488, 3110, 4558, 6220, 9116, 11395, 12440, 13373, 16483, 18232, 22790, 26746, 32966, 45580, 53492, 65932, 66865, 82415, 91160, 106984, 131864, 133730, 164830, 267460, 329660, 534920, 659320, 708769, 1417538, 2835076, 3543845, 5670152, 7087690, 14175380, 28350760]

約数ペア:

[(1, 28350760), (2, 14175380), (4, 7087690), (5, 5670152), (8, 3543845), (10, 2835076), (20, 1417538), (40, 708769), (43, 659320), (53, 534920), (86, 329660), (106, 267460), (172, 164830), (212, 133730), (215, 131864), (265, 106984), (311, 91160), (344, 82415), (424, 66865), (430, 65932), (530, 53492), (622, 45580), (860, 32966), (1060, 26746), (1244, 22790), (1555, 18232), (1720, 16483), (2120, 13373), (2279, 12440), (2488, 11395), (3110, 9116), (4558, 6220)]