865257440

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131899}}^1$

素因数の和:131955

約数の個数: 48

約数和(自身を含む): 2094044400

約数和(自身を除く): 1228786960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 131899, 263798, 527596, 659495, 1055192, 1318990, 2110384, 2637980, 4220768, 5275960, 5407859, 10551920, 10815718, 21103840, 21631436, 27039295, 43262872, 54078590, 86525744, 108157180, 173051488, 216314360, 432628720, 865257440]

約数ペア:

[(1, 865257440), (2, 432628720), (4, 216314360), (5, 173051488), (8, 108157180), (10, 86525744), (16, 54078590), (20, 43262872), (32, 27039295), (40, 21631436), (41, 21103840), (80, 10815718), (82, 10551920), (160, 5407859), (164, 5275960), (205, 4220768), (328, 2637980), (410, 2110384), (656, 1318990), (820, 1055192), (1312, 659495), (1640, 527596), (3280, 263798), (6560, 131899)]