439520

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 1079568

約数和(自身を除く): 640048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 67, 80, 82, 134, 160, 164, 205, 268, 328, 335, 410, 536, 656, 670, 820, 1072, 1312, 1340, 1640, 2144, 2680, 2747, 3280, 5360, 5494, 6560, 10720, 10988, 13735, 21976, 27470, 43952, 54940, 87904, 109880, 219760, 439520]

約数ペア:

[(1, 439520), (2, 219760), (4, 109880), (5, 87904), (8, 54940), (10, 43952), (16, 27470), (20, 21976), (32, 13735), (40, 10988), (41, 10720), (67, 6560), (80, 5494), (82, 5360), (134, 3280), (160, 2747), (164, 2680), (205, 2144), (268, 1640), (328, 1340), (335, 1312), (410, 1072), (536, 820), (656, 670)]