13324840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 31426560

約数和(自身を除く): 18101720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 127, 172, 215, 244, 254, 305, 344, 430, 488, 508, 610, 635, 860, 1016, 1220, 1270, 1720, 2440, 2540, 2623, 5080, 5246, 5461, 7747, 10492, 10922, 13115, 15494, 20984, 21844, 26230, 27305, 30988, 38735, 43688, 52460, 54610, 61976, 77470, 104920, 109220, 154940, 218440, 309880, 333121, 666242, 1332484, 1665605, 2664968, 3331210, 6662420, 13324840]

約数ペア:

[(1, 13324840), (2, 6662420), (4, 3331210), (5, 2664968), (8, 1665605), (10, 1332484), (20, 666242), (40, 333121), (43, 309880), (61, 218440), (86, 154940), (122, 109220), (127, 104920), (172, 77470), (215, 61976), (244, 54610), (254, 52460), (305, 43688), (344, 38735), (430, 30988), (488, 27305), (508, 26230), (610, 21844), (635, 20984), (860, 15494), (1016, 13115), (1220, 10922), (1270, 10492), (1720, 7747), (2440, 5461), (2540, 5246), (2623, 5080)]