42681640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 99740160

約数和(自身を除く): 57058520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 73, 94, 146, 188, 235, 292, 311, 365, 376, 470, 584, 622, 730, 940, 1244, 1460, 1555, 1880, 2488, 2920, 3110, 3431, 6220, 6862, 12440, 13724, 14617, 17155, 22703, 27448, 29234, 34310, 45406, 58468, 68620, 73085, 90812, 113515, 116936, 137240, 146170, 181624, 227030, 292340, 454060, 584680, 908120, 1067041, 2134082, 4268164, 5335205, 8536328, 10670410, 21340820, 42681640]

約数ペア:

[(1, 42681640), (2, 21340820), (4, 10670410), (5, 8536328), (8, 5335205), (10, 4268164), (20, 2134082), (40, 1067041), (47, 908120), (73, 584680), (94, 454060), (146, 292340), (188, 227030), (235, 181624), (292, 146170), (311, 137240), (365, 116936), (376, 113515), (470, 90812), (584, 73085), (622, 68620), (730, 58468), (940, 45406), (1244, 34310), (1460, 29234), (1555, 27448), (1880, 22703), (2488, 17155), (2920, 14617), (3110, 13724), (3431, 12440), (6220, 6862)]