42697720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 104317920

約数和(自身を除く): 61620200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 523, 628, 785, 1046, 1256, 1570, 2041, 2092, 2615, 3140, 4082, 4184, 5230, 6280, 6799, 8164, 10205, 10460, 13598, 16328, 20410, 20920, 27196, 33995, 40820, 54392, 67990, 81640, 82111, 135980, 164222, 271960, 328444, 410555, 656888, 821110, 1067443, 1642220, 2134886, 3284440, 4269772, 5337215, 8539544, 10674430, 21348860, 42697720]

約数ペア:

[(1, 42697720), (2, 21348860), (4, 10674430), (5, 8539544), (8, 5337215), (10, 4269772), (13, 3284440), (20, 2134886), (26, 1642220), (40, 1067443), (52, 821110), (65, 656888), (104, 410555), (130, 328444), (157, 271960), (260, 164222), (314, 135980), (520, 82111), (523, 81640), (628, 67990), (785, 54392), (1046, 40820), (1256, 33995), (1570, 27196), (2041, 20920), (2092, 20410), (2615, 16328), (3140, 13598), (4082, 10460), (4184, 10205), (5230, 8164), (6280, 6799)]