80168920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1021}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 195733440

約数和(自身を除く): 115564520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1021, 1208, 1510, 1963, 2042, 3020, 3926, 4084, 5105, 6040, 7852, 8168, 9815, 10210, 13273, 15704, 19630, 20420, 26546, 39260, 40840, 53092, 66365, 78520, 106184, 132730, 154171, 265460, 308342, 530920, 616684, 770855, 1233368, 1541710, 2004223, 3083420, 4008446, 6166840, 8016892, 10021115, 16033784, 20042230, 40084460, 80168920]

約数ペア:

[(1, 80168920), (2, 40084460), (4, 20042230), (5, 16033784), (8, 10021115), (10, 8016892), (13, 6166840), (20, 4008446), (26, 3083420), (40, 2004223), (52, 1541710), (65, 1233368), (104, 770855), (130, 616684), (151, 530920), (260, 308342), (302, 265460), (520, 154171), (604, 132730), (755, 106184), (1021, 78520), (1208, 66365), (1510, 53092), (1963, 40840), (2042, 39260), (3020, 26546), (3926, 20420), (4084, 19630), (5105, 15704), (6040, 13273), (7852, 10210), (8168, 9815)]