20878920900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{539507}}^1$

素因数の和:539570

約数の個数: 108

約数和(自身を含む): 66965890992

約数和(自身を除く): 46086970092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 43, 45, 50, 60, 75, 86, 90, 100, 129, 150, 172, 180, 215, 225, 258, 300, 387, 430, 450, 516, 645, 774, 860, 900, 1075, 1290, 1548, 1935, 2150, 2580, 3225, 3870, 4300, 6450, 7740, 9675, 12900, 19350, 38700, 539507, 1079014, 1618521, 2158028, 2697535, 3237042, 4855563, 5395070, 6474084, 8092605, 9711126, 10790140, 13487675, 16185210, 19422252, 23198801, 24277815, 26975350, 32370420, 40463025, 46397602, 48555630, 53950700, 69596403, 80926050, 92795204, 97111260, 115994005, 121389075, 139192806, 161852100, 208789209, 231988010, 242778150, 278385612, 347982015, 417578418, 463976020, 485556300, 579970025, 695964030, 835156836, 1043946045, 1159940050, 1391928060, 1739910075, 2087892090, 2319880100, 3479820150, 4175784180, 5219730225, 6959640300, 10439460450, 20878920900]

約数ペア:

[(1, 20878920900), (2, 10439460450), (3, 6959640300), (4, 5219730225), (5, 4175784180), (6, 3479820150), (9, 2319880100), (10, 2087892090), (12, 1739910075), (15, 1391928060), (18, 1159940050), (20, 1043946045), (25, 835156836), (30, 695964030), (36, 579970025), (43, 485556300), (45, 463976020), (50, 417578418), (60, 347982015), (75, 278385612), (86, 242778150), (90, 231988010), (100, 208789209), (129, 161852100), (150, 139192806), (172, 121389075), (180, 115994005), (215, 97111260), (225, 92795204), (258, 80926050), (300, 69596403), (387, 53950700), (430, 48555630), (450, 46397602), (516, 40463025), (645, 32370420), (774, 26975350), (860, 24277815), (900, 23198801), (1075, 19422252), (1290, 16185210), (1548, 13487675), (1935, 10790140), (2150, 9711126), (2580, 8092605), (3225, 6474084), (3870, 5395070), (4300, 4855563), (6450, 3237042), (7740, 2697535), (9675, 2158028), (12900, 1618521), (19350, 1079014), (38700, 539507)]