8409440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:352

約数の個数: 72

約数和(自身を含む): 21582288

約数和(自身を除く): 13172848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 311, 338, 416, 520, 622, 676, 845, 1040, 1244, 1352, 1555, 1690, 2080, 2488, 2704, 3110, 3380, 4043, 4976, 5408, 6220, 6760, 8086, 9952, 12440, 13520, 16172, 20215, 24880, 27040, 32344, 40430, 49760, 52559, 64688, 80860, 105118, 129376, 161720, 210236, 262795, 323440, 420472, 525590, 646880, 840944, 1051180, 1681888, 2102360, 4204720, 8409440]

約数ペア:

[(1, 8409440), (2, 4204720), (4, 2102360), (5, 1681888), (8, 1051180), (10, 840944), (13, 646880), (16, 525590), (20, 420472), (26, 323440), (32, 262795), (40, 210236), (52, 161720), (65, 129376), (80, 105118), (104, 80860), (130, 64688), (160, 52559), (169, 49760), (208, 40430), (260, 32344), (311, 27040), (338, 24880), (416, 20215), (520, 16172), (622, 13520), (676, 12440), (845, 9952), (1040, 8086), (1244, 6760), (1352, 6220), (1555, 5408), (1690, 4976), (2080, 4043), (2488, 3380), (2704, 3110)]