20229040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 51746688

約数和(自身を除く): 31517648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 367, 424, 520, 530, 689, 734, 848, 1040, 1060, 1378, 1468, 1835, 2120, 2756, 2936, 3445, 3670, 4240, 4771, 5512, 5872, 6890, 7340, 9542, 11024, 13780, 14680, 19084, 19451, 23855, 27560, 29360, 38168, 38902, 47710, 55120, 76336, 77804, 95420, 97255, 155608, 190840, 194510, 252863, 311216, 381680, 389020, 505726, 778040, 1011452, 1264315, 1556080, 2022904, 2528630, 4045808, 5057260, 10114520, 20229040]

約数ペア:

[(1, 20229040), (2, 10114520), (4, 5057260), (5, 4045808), (8, 2528630), (10, 2022904), (13, 1556080), (16, 1264315), (20, 1011452), (26, 778040), (40, 505726), (52, 389020), (53, 381680), (65, 311216), (80, 252863), (104, 194510), (106, 190840), (130, 155608), (208, 97255), (212, 95420), (260, 77804), (265, 76336), (367, 55120), (424, 47710), (520, 38902), (530, 38168), (689, 29360), (734, 27560), (848, 23855), (1040, 19451), (1060, 19084), (1378, 14680), (1468, 13780), (1835, 11024), (2120, 9542), (2756, 7340), (2936, 6890), (3445, 5872), (3670, 5512), (4240, 4771)]