317261440

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15991}}^1$

素因数の和:16041

約数の個数: 64

約数和(自身を含む): 782968320

約数和(自身を除く): 465706880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 15991, 19840, 31982, 63964, 79955, 127928, 159910, 255856, 319820, 495721, 511712, 639640, 991442, 1023424, 1279280, 1982884, 2046848, 2478605, 2558560, 3965768, 4957210, 5117120, 7931536, 9914420, 10234240, 15863072, 19828840, 31726144, 39657680, 63452288, 79315360, 158630720, 317261440]

約数ペア:

[(1, 317261440), (2, 158630720), (4, 79315360), (5, 63452288), (8, 39657680), (10, 31726144), (16, 19828840), (20, 15863072), (31, 10234240), (32, 9914420), (40, 7931536), (62, 5117120), (64, 4957210), (80, 3965768), (124, 2558560), (128, 2478605), (155, 2046848), (160, 1982884), (248, 1279280), (310, 1023424), (320, 991442), (496, 639640), (620, 511712), (640, 495721), (992, 319820), (1240, 255856), (1984, 159910), (2480, 127928), (3968, 79955), (4960, 63964), (9920, 31982), (15991, 19840)]