9120820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 20256768

約数和(自身を除く): 11135948

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 313, 470, 620, 626, 940, 1252, 1457, 1565, 2914, 3130, 5828, 6260, 7285, 9703, 14570, 14711, 19406, 29140, 29422, 38812, 48515, 58844, 73555, 97030, 147110, 194060, 294220, 456041, 912082, 1824164, 2280205, 4560410, 9120820]

約数ペア:

[(1, 9120820), (2, 4560410), (4, 2280205), (5, 1824164), (10, 912082), (20, 456041), (31, 294220), (47, 194060), (62, 147110), (94, 97030), (124, 73555), (155, 58844), (188, 48515), (235, 38812), (310, 29422), (313, 29140), (470, 19406), (620, 14711), (626, 14570), (940, 9703), (1252, 7285), (1457, 6260), (1565, 5828), (2914, 3130)]