397464640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:540

約数の個数: 112

約数和(自身を含む): 989015040

約数和(自身を除く): 591550400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 103, 124, 155, 160, 206, 248, 310, 320, 389, 412, 496, 515, 620, 778, 824, 992, 1030, 1240, 1556, 1648, 1945, 1984, 2060, 2480, 3112, 3193, 3296, 3890, 4120, 4960, 6224, 6386, 6592, 7780, 8240, 9920, 12059, 12448, 12772, 15560, 15965, 16480, 24118, 24896, 25544, 31120, 31930, 32960, 40067, 48236, 51088, 60295, 62240, 63860, 80134, 96472, 102176, 120590, 124480, 127720, 160268, 192944, 200335, 204352, 241180, 255440, 320536, 385888, 400670, 482360, 510880, 641072, 771776, 801340, 964720, 1021760, 1242077, 1282144, 1602680, 1929440, 2484154, 2564288, 3205360, 3858880, 4968308, 6210385, 6410720, 9936616, 12420770, 12821440, 19873232, 24841540, 39746464, 49683080, 79492928, 99366160, 198732320, 397464640]

約数ペア:

[(1, 397464640), (2, 198732320), (4, 99366160), (5, 79492928), (8, 49683080), (10, 39746464), (16, 24841540), (20, 19873232), (31, 12821440), (32, 12420770), (40, 9936616), (62, 6410720), (64, 6210385), (80, 4968308), (103, 3858880), (124, 3205360), (155, 2564288), (160, 2484154), (206, 1929440), (248, 1602680), (310, 1282144), (320, 1242077), (389, 1021760), (412, 964720), (496, 801340), (515, 771776), (620, 641072), (778, 510880), (824, 482360), (992, 400670), (1030, 385888), (1240, 320536), (1556, 255440), (1648, 241180), (1945, 204352), (1984, 200335), (2060, 192944), (2480, 160268), (3112, 127720), (3193, 124480), (3296, 120590), (3890, 102176), (4120, 96472), (4960, 80134), (6224, 63860), (6386, 62240), (6592, 60295), (7780, 51088), (8240, 48236), (9920, 40067), (12059, 32960), (12448, 31930), (12772, 31120), (15560, 25544), (15965, 24896), (16480, 24118)]