15222220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 34771968

約数和(自身を除く): 19549748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 461, 508, 635, 922, 1270, 1651, 1844, 2305, 2540, 3302, 4610, 5993, 6604, 8255, 9220, 11986, 16510, 23972, 29965, 33020, 58547, 59930, 117094, 119860, 234188, 292735, 585470, 761111, 1170940, 1522222, 3044444, 3805555, 7611110, 15222220]

約数ペア:

[(1, 15222220), (2, 7611110), (4, 3805555), (5, 3044444), (10, 1522222), (13, 1170940), (20, 761111), (26, 585470), (52, 292735), (65, 234188), (127, 119860), (130, 117094), (254, 59930), (260, 58547), (461, 33020), (508, 29965), (635, 23972), (922, 16510), (1270, 11986), (1651, 9220), (1844, 8255), (2305, 6604), (2540, 5993), (3302, 4610)]