31484720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 77807520

約数和(自身を除く): 46322800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 41, 58, 80, 82, 116, 145, 164, 205, 232, 290, 328, 331, 410, 464, 580, 656, 662, 820, 1160, 1189, 1324, 1640, 1655, 2320, 2378, 2648, 3280, 3310, 4756, 5296, 5945, 6620, 9512, 9599, 11890, 13240, 13571, 19024, 19198, 23780, 26480, 27142, 38396, 47560, 47995, 54284, 67855, 76792, 95120, 95990, 108568, 135710, 153584, 191980, 217136, 271420, 383960, 393559, 542840, 767920, 787118, 1085680, 1574236, 1967795, 3148472, 3935590, 6296944, 7871180, 15742360, 31484720]

約数ペア:

[(1, 31484720), (2, 15742360), (4, 7871180), (5, 6296944), (8, 3935590), (10, 3148472), (16, 1967795), (20, 1574236), (29, 1085680), (40, 787118), (41, 767920), (58, 542840), (80, 393559), (82, 383960), (116, 271420), (145, 217136), (164, 191980), (205, 153584), (232, 135710), (290, 108568), (328, 95990), (331, 95120), (410, 76792), (464, 67855), (580, 54284), (656, 47995), (662, 47560), (820, 38396), (1160, 27142), (1189, 26480), (1324, 23780), (1640, 19198), (1655, 19024), (2320, 13571), (2378, 13240), (2648, 11890), (3280, 9599), (3310, 9512), (4756, 6620), (5296, 5945)]