212267120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3851}}^1$

素因数の和:3930

約数の個数: 80

約数和(自身を含む): 541652832

約数和(自身を除く): 329385712

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, 424, 520, 530, 689, 848, 1040, 1060, 1378, 2120, 2756, 3445, 3851, 4240, 5512, 6890, 7702, 11024, 13780, 15404, 19255, 27560, 30808, 38510, 50063, 55120, 61616, 77020, 100126, 154040, 200252, 204103, 250315, 308080, 400504, 408206, 500630, 801008, 816412, 1001260, 1020515, 1632824, 2002520, 2041030, 2653339, 3265648, 4005040, 4082060, 5306678, 8164120, 10613356, 13266695, 16328240, 21226712, 26533390, 42453424, 53066780, 106133560, 212267120]

約数ペア:

[(1, 212267120), (2, 106133560), (4, 53066780), (5, 42453424), (8, 26533390), (10, 21226712), (13, 16328240), (16, 13266695), (20, 10613356), (26, 8164120), (40, 5306678), (52, 4082060), (53, 4005040), (65, 3265648), (80, 2653339), (104, 2041030), (106, 2002520), (130, 1632824), (208, 1020515), (212, 1001260), (260, 816412), (265, 801008), (424, 500630), (520, 408206), (530, 400504), (689, 308080), (848, 250315), (1040, 204103), (1060, 200252), (1378, 154040), (2120, 100126), (2756, 77020), (3445, 61616), (3851, 55120), (4240, 50063), (5512, 38510), (6890, 30808), (7702, 27560), (11024, 19255), (13780, 15404)]