20000760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12821}}^1$

素因数の和:12848

約数の個数: 64

約数和(自身を含む): 64622880

約数和(自身を除く): 44622120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12821, 25642, 38463, 51284, 64105, 76926, 102568, 128210, 153852, 166673, 192315, 256420, 307704, 333346, 384630, 500019, 512840, 666692, 769260, 833365, 1000038, 1333384, 1538520, 1666730, 2000076, 2500095, 3333460, 4000152, 5000190, 6666920, 10000380, 20000760]

約数ペア:

[(1, 20000760), (2, 10000380), (3, 6666920), (4, 5000190), (5, 4000152), (6, 3333460), (8, 2500095), (10, 2000076), (12, 1666730), (13, 1538520), (15, 1333384), (20, 1000038), (24, 833365), (26, 769260), (30, 666692), (39, 512840), (40, 500019), (52, 384630), (60, 333346), (65, 307704), (78, 256420), (104, 192315), (120, 166673), (130, 153852), (156, 128210), (195, 102568), (260, 76926), (312, 64105), (390, 51284), (520, 38463), (780, 25642), (1560, 12821)]