1279683340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{19609}}^1$

素因数の和:19882

約数の個数: 48

約数和(自身を含む): 2905731360

約数和(自身を除く): 1626048020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 502, 1004, 1255, 2510, 3263, 5020, 6526, 13052, 16315, 19609, 32630, 39218, 65260, 78436, 98045, 196090, 254917, 392180, 509834, 1019668, 1274585, 2549170, 4921859, 5098340, 9843718, 19687436, 24609295, 49218590, 63984167, 98437180, 127968334, 255936668, 319920835, 639841670, 1279683340]

約数ペア:

[(1, 1279683340), (2, 639841670), (4, 319920835), (5, 255936668), (10, 127968334), (13, 98437180), (20, 63984167), (26, 49218590), (52, 24609295), (65, 19687436), (130, 9843718), (251, 5098340), (260, 4921859), (502, 2549170), (1004, 1274585), (1255, 1019668), (2510, 509834), (3263, 392180), (5020, 254917), (6526, 196090), (13052, 98045), (16315, 78436), (19609, 65260), (32630, 39218)]