28915278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 70917120

約数和(自身を除く): 42001842

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 37, 42, 46, 69, 74, 111, 138, 161, 222, 259, 322, 483, 518, 777, 809, 851, 966, 1554, 1618, 1702, 2427, 2553, 4854, 5106, 5663, 5957, 11326, 11914, 16989, 17871, 18607, 29933, 33978, 35742, 37214, 55821, 59866, 89799, 111642, 130249, 179598, 209531, 260498, 390747, 419062, 628593, 688459, 781494, 1257186, 1376918, 2065377, 4130754, 4819213, 9638426, 14457639, 28915278]

約数ペア:

[(1, 28915278), (2, 14457639), (3, 9638426), (6, 4819213), (7, 4130754), (14, 2065377), (21, 1376918), (23, 1257186), (37, 781494), (42, 688459), (46, 628593), (69, 419062), (74, 390747), (111, 260498), (138, 209531), (161, 179598), (222, 130249), (259, 111642), (322, 89799), (483, 59866), (518, 55821), (777, 37214), (809, 35742), (851, 33978), (966, 29933), (1554, 18607), (1618, 17871), (1702, 16989), (2427, 11914), (2553, 11326), (4854, 5957), (5106, 5663)]