20953800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{1663}}^1$

素因数の和:1692

約数の個数: 144

約数和(自身を含む): 80471040

約数和(自身を除く): 59517240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1663, 1800, 2100, 2520, 3150, 3326, 4200, 4989, 6300, 6652, 8315, 9978, 11641, 12600, 13304, 14967, 16630, 19956, 23282, 24945, 29934, 33260, 34923, 39912, 41575, 46564, 49890, 58205, 59868, 66520, 69846, 74835, 83150, 93128, 99780, 104769, 116410, 119736, 124725, 139692, 149670, 166300, 174615, 199560, 209538, 232820, 249450, 279384, 291025, 299340, 332600, 349230, 374175, 419076, 465640, 498900, 523845, 582050, 598680, 698460, 748350, 838152, 873075, 997800, 1047690, 1164100, 1396920, 1496700, 1746150, 2095380, 2328200, 2619225, 2993400, 3492300, 4190760, 5238450, 6984600, 10476900, 20953800]

約数ペア:

[(1, 20953800), (2, 10476900), (3, 6984600), (4, 5238450), (5, 4190760), (6, 3492300), (7, 2993400), (8, 2619225), (9, 2328200), (10, 2095380), (12, 1746150), (14, 1496700), (15, 1396920), (18, 1164100), (20, 1047690), (21, 997800), (24, 873075), (25, 838152), (28, 748350), (30, 698460), (35, 598680), (36, 582050), (40, 523845), (42, 498900), (45, 465640), (50, 419076), (56, 374175), (60, 349230), (63, 332600), (70, 299340), (72, 291025), (75, 279384), (84, 249450), (90, 232820), (100, 209538), (105, 199560), (120, 174615), (126, 166300), (140, 149670), (150, 139692), (168, 124725), (175, 119736), (180, 116410), (200, 104769), (210, 99780), (225, 93128), (252, 83150), (280, 74835), (300, 69846), (315, 66520), (350, 59868), (360, 58205), (420, 49890), (450, 46564), (504, 41575), (525, 39912), (600, 34923), (630, 33260), (700, 29934), (840, 24945), (900, 23282), (1050, 19956), (1260, 16630), (1400, 14967), (1575, 13304), (1663, 12600), (1800, 11641), (2100, 9978), (2520, 8315), (3150, 6652), (3326, 6300), (4200, 4989)]