215575984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 472192000

約数和(自身を除く): 256616016

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 67, 104, 124, 134, 208, 248, 268, 403, 496, 499, 536, 806, 871, 998, 1072, 1612, 1742, 1996, 2077, 3224, 3484, 3992, 4154, 6448, 6487, 6968, 7984, 8308, 12974, 13936, 15469, 16616, 25948, 27001, 30938, 33232, 33433, 51896, 54002, 61876, 66866, 103792, 108004, 123752, 133732, 201097, 216008, 247504, 267464, 402194, 432016, 434629, 534928, 804388, 869258, 1036423, 1608776, 1738516, 2072846, 3217552, 3477032, 4145692, 6954064, 8291384, 13473499, 16582768, 26946998, 53893996, 107787992, 215575984]

約数ペア:

[(1, 215575984), (2, 107787992), (4, 53893996), (8, 26946998), (13, 16582768), (16, 13473499), (26, 8291384), (31, 6954064), (52, 4145692), (62, 3477032), (67, 3217552), (104, 2072846), (124, 1738516), (134, 1608776), (208, 1036423), (248, 869258), (268, 804388), (403, 534928), (496, 434629), (499, 432016), (536, 402194), (806, 267464), (871, 247504), (998, 216008), (1072, 201097), (1612, 133732), (1742, 123752), (1996, 108004), (2077, 103792), (3224, 66866), (3484, 61876), (3992, 54002), (4154, 51896), (6448, 33433), (6487, 33232), (6968, 30938), (7984, 27001), (8308, 25948), (12974, 16616), (13936, 15469)]