19953180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8527}}^1$

素因数の和:8555

約数の個数: 72

約数和(自身を含む): 65188032

約数和(自身を除く): 45234852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8527, 17054, 25581, 34108, 42635, 51162, 76743, 85270, 102324, 110851, 127905, 153486, 170540, 221702, 255810, 306972, 332553, 383715, 443404, 511620, 554255, 665106, 767430, 997659, 1108510, 1330212, 1534860, 1662765, 1995318, 2217020, 3325530, 3990636, 4988295, 6651060, 9976590, 19953180]

約数ペア:

[(1, 19953180), (2, 9976590), (3, 6651060), (4, 4988295), (5, 3990636), (6, 3325530), (9, 2217020), (10, 1995318), (12, 1662765), (13, 1534860), (15, 1330212), (18, 1108510), (20, 997659), (26, 767430), (30, 665106), (36, 554255), (39, 511620), (45, 443404), (52, 383715), (60, 332553), (65, 306972), (78, 255810), (90, 221702), (117, 170540), (130, 153486), (156, 127905), (180, 110851), (195, 102324), (234, 85270), (260, 76743), (390, 51162), (468, 42635), (585, 34108), (780, 25581), (1170, 17054), (2340, 8527)]