18513620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 22467628

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 167, 230, 241, 334, 460, 482, 668, 835, 964, 1205, 1670, 2410, 3340, 3841, 4820, 5543, 7682, 11086, 15364, 19205, 22172, 27715, 38410, 40247, 55430, 76820, 80494, 110860, 160988, 201235, 402470, 804940, 925681, 1851362, 3702724, 4628405, 9256810, 18513620]

約数ペア:

[(1, 18513620), (2, 9256810), (4, 4628405), (5, 3702724), (10, 1851362), (20, 925681), (23, 804940), (46, 402470), (92, 201235), (115, 160988), (167, 110860), (230, 80494), (241, 76820), (334, 55430), (460, 40247), (482, 38410), (668, 27715), (835, 22172), (964, 19205), (1205, 15364), (1670, 11086), (2410, 7682), (3340, 5543), (3841, 4820)]