253444440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 780088320

約数和(自身を除く): 526643880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 151, 197, 213, 284, 302, 355, 394, 426, 453, 568, 591, 604, 710, 755, 788, 852, 906, 985, 1065, 1182, 1208, 1420, 1510, 1576, 1704, 1812, 1970, 2130, 2265, 2364, 2840, 2955, 3020, 3624, 3940, 4260, 4530, 4728, 5910, 6040, 7880, 8520, 9060, 10721, 11820, 13987, 18120, 21442, 23640, 27974, 29747, 32163, 41961, 42884, 53605, 55948, 59494, 64326, 69935, 83922, 85768, 89241, 107210, 111896, 118988, 128652, 139870, 148735, 160815, 167844, 178482, 209805, 214420, 237976, 257304, 279740, 297470, 321630, 335688, 356964, 419610, 428840, 446205, 559480, 594940, 643260, 713928, 839220, 892410, 1189880, 1286520, 1678440, 1784820, 2112037, 3569640, 4224074, 6336111, 8448148, 10560185, 12672222, 16896296, 21120370, 25344444, 31680555, 42240740, 50688888, 63361110, 84481480, 126722220, 253444440]

約数ペア:

[(1, 253444440), (2, 126722220), (3, 84481480), (4, 63361110), (5, 50688888), (6, 42240740), (8, 31680555), (10, 25344444), (12, 21120370), (15, 16896296), (20, 12672222), (24, 10560185), (30, 8448148), (40, 6336111), (60, 4224074), (71, 3569640), (120, 2112037), (142, 1784820), (151, 1678440), (197, 1286520), (213, 1189880), (284, 892410), (302, 839220), (355, 713928), (394, 643260), (426, 594940), (453, 559480), (568, 446205), (591, 428840), (604, 419610), (710, 356964), (755, 335688), (788, 321630), (852, 297470), (906, 279740), (985, 257304), (1065, 237976), (1182, 214420), (1208, 209805), (1420, 178482), (1510, 167844), (1576, 160815), (1704, 148735), (1812, 139870), (1970, 128652), (2130, 118988), (2265, 111896), (2364, 107210), (2840, 89241), (2955, 85768), (3020, 83922), (3624, 69935), (3940, 64326), (4260, 59494), (4530, 55948), (4728, 53605), (5910, 42884), (6040, 41961), (7880, 32163), (8520, 29747), (9060, 27974), (10721, 23640), (11820, 21442), (13987, 18120)]