31539560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 77172480

約数和(自身を除く): 45632920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 463, 520, 524, 655, 926, 1048, 1310, 1703, 1852, 2315, 2620, 3406, 3704, 4630, 5240, 6019, 6812, 8515, 9260, 12038, 13624, 17030, 18520, 24076, 30095, 34060, 48152, 60190, 60653, 68120, 120380, 121306, 240760, 242612, 303265, 485224, 606530, 788489, 1213060, 1576978, 2426120, 3153956, 3942445, 6307912, 7884890, 15769780, 31539560]

約数ペア:

[(1, 31539560), (2, 15769780), (4, 7884890), (5, 6307912), (8, 3942445), (10, 3153956), (13, 2426120), (20, 1576978), (26, 1213060), (40, 788489), (52, 606530), (65, 485224), (104, 303265), (130, 242612), (131, 240760), (260, 121306), (262, 120380), (463, 68120), (520, 60653), (524, 60190), (655, 48152), (926, 34060), (1048, 30095), (1310, 24076), (1703, 18520), (1852, 17030), (2315, 13624), (2620, 12038), (3406, 9260), (3704, 8515), (4630, 6812), (5240, 6019)]