13119520

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 31243968

約数和(自身を除く): 18124448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 491, 668, 835, 982, 1336, 1670, 1964, 2455, 2672, 3340, 3928, 4910, 5344, 6680, 7856, 9820, 13360, 15712, 19640, 26720, 39280, 78560, 81997, 163994, 327988, 409985, 655976, 819970, 1311952, 1639940, 2623904, 3279880, 6559760, 13119520]

約数ペア:

[(1, 13119520), (2, 6559760), (4, 3279880), (5, 2623904), (8, 1639940), (10, 1311952), (16, 819970), (20, 655976), (32, 409985), (40, 327988), (80, 163994), (160, 81997), (167, 78560), (334, 39280), (491, 26720), (668, 19640), (835, 15712), (982, 13360), (1336, 9820), (1670, 7856), (1964, 6680), (2455, 5344), (2672, 4910), (3340, 3928)]