646880

素因数分解:

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

素因数の和:339

約数の個数: 48

約数和(自身を含む): 1651104

約数和(自身を除く): 1004224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 311, 416, 520, 622, 1040, 1244, 1555, 2080, 2488, 3110, 4043, 4976, 6220, 8086, 9952, 12440, 16172, 20215, 24880, 32344, 40430, 49760, 64688, 80860, 129376, 161720, 323440, 646880]

約数ペア:

[(1, 646880), (2, 323440), (4, 161720), (5, 129376), (8, 80860), (10, 64688), (13, 49760), (16, 40430), (20, 32344), (26, 24880), (32, 20215), (40, 16172), (52, 12440), (65, 9952), (80, 8086), (104, 6220), (130, 4976), (160, 4043), (208, 3110), (260, 2488), (311, 2080), (416, 1555), (520, 1244), (622, 1040)]