256796400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1656

約数の個数: 240

約数和(自身を含む): 990214400

約数和(自身を除く): 733418000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 28, 30, 35, 38, 40, 42, 48, 50, 56, 57, 60, 70, 75, 76, 80, 84, 95, 100, 105, 112, 114, 120, 133, 140, 150, 152, 168, 175, 190, 200, 210, 228, 240, 266, 280, 285, 300, 304, 336, 350, 380, 399, 400, 420, 456, 475, 525, 532, 560, 570, 600, 665, 700, 760, 798, 840, 912, 950, 1050, 1064, 1140, 1200, 1330, 1400, 1425, 1520, 1596, 1609, 1680, 1900, 1995, 2100, 2128, 2280, 2660, 2800, 2850, 3192, 3218, 3325, 3800, 3990, 4200, 4560, 4827, 5320, 5700, 6384, 6436, 6650, 7600, 7980, 8045, 8400, 9654, 9975, 10640, 11263, 11400, 12872, 13300, 15960, 16090, 19308, 19950, 22526, 22800, 24135, 25744, 26600, 30571, 31920, 32180, 33789, 38616, 39900, 40225, 45052, 48270, 53200, 56315, 61142, 64360, 67578, 77232, 79800, 80450, 90104, 91713, 96540, 112630, 120675, 122284, 128720, 135156, 152855, 159600, 160900, 168945, 180208, 183426, 193080, 213997, 225260, 241350, 244568, 270312, 281575, 305710, 321800, 337890, 366852, 386160, 427994, 450520, 458565, 482700, 489136, 540624, 563150, 611420, 641991, 643600, 675780, 733704, 764275, 844725, 855988, 901040, 917130, 965400, 1069985, 1126300, 1222840, 1283982, 1351560, 1467408, 1528550, 1689450, 1711976, 1834260, 1930800, 2139970, 2252600, 2292825, 2445680, 2567964, 2703120, 3057100, 3209955, 3378900, 3423952, 3668520, 4279940, 4505200, 4585650, 5135928, 5349925, 6114200, 6419910, 6757800, 7337040, 8559880, 9171300, 10271856, 10699850, 12228400, 12839820, 13515600, 16049775, 17119760, 18342600, 21399700, 25679640, 32099550, 36685200, 42799400, 51359280, 64199100, 85598800, 128398200, 256796400]

約数ペア:

[(1, 256796400), (2, 128398200), (3, 85598800), (4, 64199100), (5, 51359280), (6, 42799400), (7, 36685200), (8, 32099550), (10, 25679640), (12, 21399700), (14, 18342600), (15, 17119760), (16, 16049775), (19, 13515600), (20, 12839820), (21, 12228400), (24, 10699850), (25, 10271856), (28, 9171300), (30, 8559880), (35, 7337040), (38, 6757800), (40, 6419910), (42, 6114200), (48, 5349925), (50, 5135928), (56, 4585650), (57, 4505200), (60, 4279940), (70, 3668520), (75, 3423952), (76, 3378900), (80, 3209955), (84, 3057100), (95, 2703120), (100, 2567964), (105, 2445680), (112, 2292825), (114, 2252600), (120, 2139970), (133, 1930800), (140, 1834260), (150, 1711976), (152, 1689450), (168, 1528550), (175, 1467408), (190, 1351560), (200, 1283982), (210, 1222840), (228, 1126300), (240, 1069985), (266, 965400), (280, 917130), (285, 901040), (300, 855988), (304, 844725), (336, 764275), (350, 733704), (380, 675780), (399, 643600), (400, 641991), (420, 611420), (456, 563150), (475, 540624), (525, 489136), (532, 482700), (560, 458565), (570, 450520), (600, 427994), (665, 386160), (700, 366852), (760, 337890), (798, 321800), (840, 305710), (912, 281575), (950, 270312), (1050, 244568), (1064, 241350), (1140, 225260), (1200, 213997), (1330, 193080), (1400, 183426), (1425, 180208), (1520, 168945), (1596, 160900), (1609, 159600), (1680, 152855), (1900, 135156), (1995, 128720), (2100, 122284), (2128, 120675), (2280, 112630), (2660, 96540), (2800, 91713), (2850, 90104), (3192, 80450), (3218, 79800), (3325, 77232), (3800, 67578), (3990, 64360), (4200, 61142), (4560, 56315), (4827, 53200), (5320, 48270), (5700, 45052), (6384, 40225), (6436, 39900), (6650, 38616), (7600, 33789), (7980, 32180), (8045, 31920), (8400, 30571), (9654, 26600), (9975, 25744), (10640, 24135), (11263, 22800), (11400, 22526), (12872, 19950), (13300, 19308), (15960, 16090)]