198221440

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 499000320

約数和(自身を除く): 300778880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 97, 103, 124, 128, 155, 160, 194, 206, 248, 310, 320, 388, 412, 485, 496, 515, 620, 640, 776, 824, 970, 992, 1030, 1240, 1552, 1648, 1940, 1984, 2060, 2480, 3007, 3104, 3193, 3296, 3880, 3968, 4120, 4960, 6014, 6208, 6386, 6592, 7760, 8240, 9920, 9991, 12028, 12416, 12772, 13184, 15035, 15520, 15965, 16480, 19840, 19982, 24056, 25544, 30070, 31040, 31930, 32960, 39964, 48112, 49955, 51088, 60140, 62080, 63860, 65920, 79928, 96224, 99910, 102176, 120280, 127720, 159856, 192448, 199820, 204352, 240560, 255440, 309721, 319712, 384896, 399640, 408704, 481120, 510880, 619442, 639424, 799280, 962240, 1021760, 1238884, 1278848, 1548605, 1598560, 1924480, 2043520, 2477768, 3097210, 3197120, 4955536, 6194420, 6394240, 9911072, 12388840, 19822144, 24777680, 39644288, 49555360, 99110720, 198221440]

約数ペア:

[(1, 198221440), (2, 99110720), (4, 49555360), (5, 39644288), (8, 24777680), (10, 19822144), (16, 12388840), (20, 9911072), (31, 6394240), (32, 6194420), (40, 4955536), (62, 3197120), (64, 3097210), (80, 2477768), (97, 2043520), (103, 1924480), (124, 1598560), (128, 1548605), (155, 1278848), (160, 1238884), (194, 1021760), (206, 962240), (248, 799280), (310, 639424), (320, 619442), (388, 510880), (412, 481120), (485, 408704), (496, 399640), (515, 384896), (620, 319712), (640, 309721), (776, 255440), (824, 240560), (970, 204352), (992, 199820), (1030, 192448), (1240, 159856), (1552, 127720), (1648, 120280), (1940, 102176), (1984, 99910), (2060, 96224), (2480, 79928), (3007, 65920), (3104, 63860), (3193, 62080), (3296, 60140), (3880, 51088), (3968, 49955), (4120, 48112), (4960, 39964), (6014, 32960), (6208, 31930), (6386, 31040), (6592, 30070), (7760, 25544), (8240, 24056), (9920, 19982), (9991, 19840), (12028, 16480), (12416, 15965), (12772, 15520), (13184, 15035)]