20961600

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1$

素因数の和:433

約数の個数: 168

約数和(自身を含む): 75212448

約数和(自身を除く): 54250848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 64, 66, 75, 80, 88, 96, 100, 110, 120, 132, 150, 160, 165, 176, 192, 200, 220, 240, 264, 275, 300, 320, 330, 352, 397, 400, 440, 480, 528, 550, 600, 660, 704, 794, 800, 825, 880, 960, 1056, 1100, 1191, 1200, 1320, 1588, 1600, 1650, 1760, 1985, 2112, 2200, 2382, 2400, 2640, 3176, 3300, 3520, 3970, 4367, 4400, 4764, 4800, 5280, 5955, 6352, 6600, 7940, 8734, 8800, 9528, 9925, 10560, 11910, 12704, 13101, 13200, 15880, 17468, 17600, 19056, 19850, 21835, 23820, 25408, 26202, 26400, 29775, 31760, 34936, 38112, 39700, 43670, 47640, 52404, 52800, 59550, 63520, 65505, 69872, 76224, 79400, 87340, 95280, 104808, 109175, 119100, 127040, 131010, 139744, 158800, 174680, 190560, 209616, 218350, 238200, 262020, 279488, 317600, 327525, 349360, 381120, 419232, 436700, 476400, 524040, 635200, 655050, 698720, 838464, 873400, 952800, 1048080, 1310100, 1397440, 1746800, 1905600, 2096160, 2620200, 3493600, 4192320, 5240400, 6987200, 10480800, 20961600]

約数ペア:

[(1, 20961600), (2, 10480800), (3, 6987200), (4, 5240400), (5, 4192320), (6, 3493600), (8, 2620200), (10, 2096160), (11, 1905600), (12, 1746800), (15, 1397440), (16, 1310100), (20, 1048080), (22, 952800), (24, 873400), (25, 838464), (30, 698720), (32, 655050), (33, 635200), (40, 524040), (44, 476400), (48, 436700), (50, 419232), (55, 381120), (60, 349360), (64, 327525), (66, 317600), (75, 279488), (80, 262020), (88, 238200), (96, 218350), (100, 209616), (110, 190560), (120, 174680), (132, 158800), (150, 139744), (160, 131010), (165, 127040), (176, 119100), (192, 109175), (200, 104808), (220, 95280), (240, 87340), (264, 79400), (275, 76224), (300, 69872), (320, 65505), (330, 63520), (352, 59550), (397, 52800), (400, 52404), (440, 47640), (480, 43670), (528, 39700), (550, 38112), (600, 34936), (660, 31760), (704, 29775), (794, 26400), (800, 26202), (825, 25408), (880, 23820), (960, 21835), (1056, 19850), (1100, 19056), (1191, 17600), (1200, 17468), (1320, 15880), (1588, 13200), (1600, 13101), (1650, 12704), (1760, 11910), (1985, 10560), (2112, 9925), (2200, 9528), (2382, 8800), (2400, 8734), (2640, 7940), (3176, 6600), (3300, 6352), (3520, 5955), (3970, 5280), (4367, 4800), (4400, 4764)]