1428168820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{289103}}^1$

素因数の和:289144

約数の個数: 48

約数和(自身を含む): 3399863040

約数和(自身を除く): 1971694220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 289103, 578206, 1156412, 1445515, 2891030, 3758339, 5492957, 5782060, 7516678, 10985914, 15033356, 18791695, 21971828, 27464785, 37583390, 54929570, 71408441, 75166780, 109859140, 142816882, 285633764, 357042205, 714084410, 1428168820]

約数ペア:

[(1, 1428168820), (2, 714084410), (4, 357042205), (5, 285633764), (10, 142816882), (13, 109859140), (19, 75166780), (20, 71408441), (26, 54929570), (38, 37583390), (52, 27464785), (65, 21971828), (76, 18791695), (95, 15033356), (130, 10985914), (190, 7516678), (247, 5782060), (260, 5492957), (380, 3758339), (494, 2891030), (988, 1445515), (1235, 1156412), (2470, 578206), (4940, 289103)]