30704720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 76655808

約数和(自身を除く): 45951088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 107, 136, 170, 211, 214, 272, 340, 422, 428, 535, 680, 844, 856, 1055, 1070, 1360, 1688, 1712, 1819, 2110, 2140, 3376, 3587, 3638, 4220, 4280, 7174, 7276, 8440, 8560, 9095, 14348, 14552, 16880, 17935, 18190, 22577, 28696, 29104, 35870, 36380, 45154, 57392, 71740, 72760, 90308, 112885, 143480, 145520, 180616, 225770, 286960, 361232, 383809, 451540, 767618, 903080, 1535236, 1806160, 1919045, 3070472, 3838090, 6140944, 7676180, 15352360, 30704720]

約数ペア:

[(1, 30704720), (2, 15352360), (4, 7676180), (5, 6140944), (8, 3838090), (10, 3070472), (16, 1919045), (17, 1806160), (20, 1535236), (34, 903080), (40, 767618), (68, 451540), (80, 383809), (85, 361232), (107, 286960), (136, 225770), (170, 180616), (211, 145520), (214, 143480), (272, 112885), (340, 90308), (422, 72760), (428, 71740), (535, 57392), (680, 45154), (844, 36380), (856, 35870), (1055, 29104), (1070, 28696), (1360, 22577), (1688, 18190), (1712, 17935), (1819, 16880), (2110, 14552), (2140, 14348), (3376, 9095), (3587, 8560), (3638, 8440), (4220, 7276), (4280, 7174)]