30455740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1031}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 73511424

約数和(自身を除く): 43055684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1031, 1055, 1477, 2062, 2110, 2954, 4124, 4220, 5155, 5908, 7217, 7385, 10310, 14434, 14770, 20620, 28868, 29540, 36085, 72170, 144340, 217541, 435082, 870164, 1087705, 1522787, 2175410, 3045574, 4350820, 6091148, 7613935, 15227870, 30455740]

約数ペア:

[(1, 30455740), (2, 15227870), (4, 7613935), (5, 6091148), (7, 4350820), (10, 3045574), (14, 2175410), (20, 1522787), (28, 1087705), (35, 870164), (70, 435082), (140, 217541), (211, 144340), (422, 72170), (844, 36085), (1031, 29540), (1055, 28868), (1477, 20620), (2062, 14770), (2110, 14434), (2954, 10310), (4124, 7385), (4220, 7217), (5155, 5908)]