73643440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{419}}^1$

素因数の和:471

約数の個数: 80

約数和(自身を含む): 185925600

約数和(自身を除く): 112282160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 419, 520, 676, 838, 845, 1040, 1352, 1676, 1690, 2095, 2197, 2704, 3352, 3380, 4190, 4394, 5447, 6704, 6760, 8380, 8788, 10894, 10985, 13520, 16760, 17576, 21788, 21970, 27235, 33520, 35152, 43576, 43940, 54470, 70811, 87152, 87880, 108940, 141622, 175760, 217880, 283244, 354055, 435760, 566488, 708110, 920543, 1132976, 1416220, 1841086, 2832440, 3682172, 4602715, 5664880, 7364344, 9205430, 14728688, 18410860, 36821720, 73643440]

約数ペア:

[(1, 73643440), (2, 36821720), (4, 18410860), (5, 14728688), (8, 9205430), (10, 7364344), (13, 5664880), (16, 4602715), (20, 3682172), (26, 2832440), (40, 1841086), (52, 1416220), (65, 1132976), (80, 920543), (104, 708110), (130, 566488), (169, 435760), (208, 354055), (260, 283244), (338, 217880), (419, 175760), (520, 141622), (676, 108940), (838, 87880), (845, 87152), (1040, 70811), (1352, 54470), (1676, 43940), (1690, 43576), (2095, 35152), (2197, 33520), (2704, 27235), (3352, 21970), (3380, 21788), (4190, 17576), (4394, 16760), (5447, 13520), (6704, 10985), (6760, 10894), (8380, 8788)]