2584972820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{16223}}^1$

素因数の和:16520

約数の個数: 48

約数和(自身を含む): 5625704448

約数和(自身を除く): 3040731628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 257, 310, 514, 620, 1028, 1285, 2570, 5140, 7967, 15934, 16223, 31868, 32446, 39835, 64892, 79670, 81115, 159340, 162230, 324460, 502913, 1005826, 2011652, 2514565, 4169311, 5029130, 8338622, 10058260, 16677244, 20846555, 41693110, 83386220, 129248641, 258497282, 516994564, 646243205, 1292486410, 2584972820]

約数ペア:

[(1, 2584972820), (2, 1292486410), (4, 646243205), (5, 516994564), (10, 258497282), (20, 129248641), (31, 83386220), (62, 41693110), (124, 20846555), (155, 16677244), (257, 10058260), (310, 8338622), (514, 5029130), (620, 4169311), (1028, 2514565), (1285, 2011652), (2570, 1005826), (5140, 502913), (7967, 324460), (15934, 162230), (16223, 159340), (31868, 81115), (32446, 79670), (39835, 64892)]