20887560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3413}}^1$

素因数の和:3447

約数の個数: 96

約数和(自身を含む): 71898840

約数和(自身を除く): 51011280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3413, 6120, 6826, 10239, 13652, 17065, 20478, 27304, 30717, 34130, 40956, 51195, 58021, 61434, 68260, 81912, 102390, 116042, 122868, 136520, 153585, 174063, 204780, 232084, 245736, 290105, 307170, 348126, 409560, 464168, 522189, 580210, 614340, 696252, 870315, 1044378, 1160420, 1228680, 1392504, 1740630, 2088756, 2320840, 2610945, 3481260, 4177512, 5221890, 6962520, 10443780, 20887560]

約数ペア:

[(1, 20887560), (2, 10443780), (3, 6962520), (4, 5221890), (5, 4177512), (6, 3481260), (8, 2610945), (9, 2320840), (10, 2088756), (12, 1740630), (15, 1392504), (17, 1228680), (18, 1160420), (20, 1044378), (24, 870315), (30, 696252), (34, 614340), (36, 580210), (40, 522189), (45, 464168), (51, 409560), (60, 348126), (68, 307170), (72, 290105), (85, 245736), (90, 232084), (102, 204780), (120, 174063), (136, 153585), (153, 136520), (170, 122868), (180, 116042), (204, 102390), (255, 81912), (306, 68260), (340, 61434), (360, 58021), (408, 51195), (510, 40956), (612, 34130), (680, 30717), (765, 27304), (1020, 20478), (1224, 17065), (1530, 13652), (2040, 10239), (3060, 6826), (3413, 6120)]