820221376

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{3559}}^1$

素因数の和:3861

約数の個数: 56

約数和(自身を含む): 1759651040

約数和(自身を除く): 939429664

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 277, 416, 554, 832, 1108, 2216, 3559, 3601, 4432, 7118, 7202, 8864, 14236, 14404, 17728, 28472, 28808, 46267, 56944, 57616, 92534, 113888, 115232, 185068, 227776, 230464, 370136, 740272, 985843, 1480544, 1971686, 2961088, 3943372, 7886744, 12815959, 15773488, 25631918, 31546976, 51263836, 63093952, 102527672, 205055344, 410110688, 820221376]

約数ペア:

[(1, 820221376), (2, 410110688), (4, 205055344), (8, 102527672), (13, 63093952), (16, 51263836), (26, 31546976), (32, 25631918), (52, 15773488), (64, 12815959), (104, 7886744), (208, 3943372), (277, 2961088), (416, 1971686), (554, 1480544), (832, 985843), (1108, 740272), (2216, 370136), (3559, 230464), (3601, 227776), (4432, 185068), (7118, 115232), (7202, 113888), (8864, 92534), (14236, 57616), (14404, 56944), (17728, 46267), (28472, 28808)]