31307120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30103}}^1$

素因数の和:30129

約数の個数: 40

約数和(自身を含む): 78390816

約数和(自身を除く): 47083696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30103, 60206, 120412, 150515, 240824, 301030, 391339, 481648, 602060, 782678, 1204120, 1565356, 1956695, 2408240, 3130712, 3913390, 6261424, 7826780, 15653560, 31307120]

約数ペア:

[(1, 31307120), (2, 15653560), (4, 7826780), (5, 6261424), (8, 3913390), (10, 3130712), (13, 2408240), (16, 1956695), (20, 1565356), (26, 1204120), (40, 782678), (52, 602060), (65, 481648), (80, 391339), (104, 301030), (130, 240824), (208, 150515), (260, 120412), (520, 60206), (1040, 30103)]