131639440

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{22541}}^1$

素因数の和:22627

約数の個数: 40

約数和(自身を含む): 310268088

約数和(自身を除く): 178628648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 22541, 45082, 90164, 112705, 180328, 225410, 360656, 450820, 901640, 1645493, 1803280, 3290986, 6581972, 8227465, 13163944, 16454930, 26327888, 32909860, 65819720, 131639440]

約数ペア:

[(1, 131639440), (2, 65819720), (4, 32909860), (5, 26327888), (8, 16454930), (10, 13163944), (16, 8227465), (20, 6581972), (40, 3290986), (73, 1803280), (80, 1645493), (146, 901640), (292, 450820), (365, 360656), (584, 225410), (730, 180328), (1168, 112705), (1460, 90164), (2920, 45082), (5840, 22541)]