20522400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:543

約数の個数: 144

約数和(自身を含む): 70870464

約数和(自身を除く): 50348064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 32, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 96, 100, 102, 120, 136, 150, 160, 170, 200, 204, 240, 255, 272, 300, 340, 400, 408, 425, 480, 503, 510, 544, 600, 680, 800, 816, 850, 1006, 1020, 1200, 1275, 1360, 1509, 1632, 1700, 2012, 2040, 2400, 2515, 2550, 2720, 3018, 3400, 4024, 4080, 5030, 5100, 6036, 6800, 7545, 8048, 8160, 8551, 10060, 10200, 12072, 12575, 13600, 15090, 16096, 17102, 20120, 20400, 24144, 25150, 25653, 30180, 34204, 37725, 40240, 40800, 42755, 48288, 50300, 51306, 60360, 68408, 75450, 80480, 85510, 100600, 102612, 120720, 128265, 136816, 150900, 171020, 201200, 205224, 213775, 241440, 256530, 273632, 301800, 342040, 402400, 410448, 427550, 513060, 603600, 641325, 684080, 820896, 855100, 1026120, 1207200, 1282650, 1368160, 1710200, 2052240, 2565300, 3420400, 4104480, 5130600, 6840800, 10261200, 20522400]

約数ペア:

[(1, 20522400), (2, 10261200), (3, 6840800), (4, 5130600), (5, 4104480), (6, 3420400), (8, 2565300), (10, 2052240), (12, 1710200), (15, 1368160), (16, 1282650), (17, 1207200), (20, 1026120), (24, 855100), (25, 820896), (30, 684080), (32, 641325), (34, 603600), (40, 513060), (48, 427550), (50, 410448), (51, 402400), (60, 342040), (68, 301800), (75, 273632), (80, 256530), (85, 241440), (96, 213775), (100, 205224), (102, 201200), (120, 171020), (136, 150900), (150, 136816), (160, 128265), (170, 120720), (200, 102612), (204, 100600), (240, 85510), (255, 80480), (272, 75450), (300, 68408), (340, 60360), (400, 51306), (408, 50300), (425, 48288), (480, 42755), (503, 40800), (510, 40240), (544, 37725), (600, 34204), (680, 30180), (800, 25653), (816, 25150), (850, 24144), (1006, 20400), (1020, 20120), (1200, 17102), (1275, 16096), (1360, 15090), (1509, 13600), (1632, 12575), (1700, 12072), (2012, 10200), (2040, 10060), (2400, 8551), (2515, 8160), (2550, 8048), (2720, 7545), (3018, 6800), (3400, 6036), (4024, 5100), (4080, 5030)]