1877720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 4777920

約数和(自身を除く): 2900200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 157, 184, 230, 260, 299, 314, 460, 520, 598, 628, 785, 920, 1196, 1256, 1495, 1570, 2041, 2392, 2990, 3140, 3611, 4082, 5980, 6280, 7222, 8164, 10205, 11960, 14444, 16328, 18055, 20410, 28888, 36110, 40820, 46943, 72220, 81640, 93886, 144440, 187772, 234715, 375544, 469430, 938860, 1877720]

約数ペア:

[(1, 1877720), (2, 938860), (4, 469430), (5, 375544), (8, 234715), (10, 187772), (13, 144440), (20, 93886), (23, 81640), (26, 72220), (40, 46943), (46, 40820), (52, 36110), (65, 28888), (92, 20410), (104, 18055), (115, 16328), (130, 14444), (157, 11960), (184, 10205), (230, 8164), (260, 7222), (299, 6280), (314, 5980), (460, 4082), (520, 3611), (598, 3140), (628, 2990), (785, 2392), (920, 2041), (1196, 1570), (1256, 1495)]