31777720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2704

約数の個数: 64

約数和(自身を含む): 80377920

約数和(自身を除く): 48600200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2657, 2990, 5314, 5980, 10628, 11960, 13285, 21256, 26570, 34541, 53140, 61111, 69082, 106280, 122222, 138164, 172705, 244444, 276328, 305555, 345410, 488888, 611110, 690820, 794443, 1222220, 1381640, 1588886, 2444440, 3177772, 3972215, 6355544, 7944430, 15888860, 31777720]

約数ペア:

[(1, 31777720), (2, 15888860), (4, 7944430), (5, 6355544), (8, 3972215), (10, 3177772), (13, 2444440), (20, 1588886), (23, 1381640), (26, 1222220), (40, 794443), (46, 690820), (52, 611110), (65, 488888), (92, 345410), (104, 305555), (115, 276328), (130, 244444), (184, 172705), (230, 138164), (260, 122222), (299, 106280), (460, 69082), (520, 61111), (598, 53140), (920, 34541), (1196, 26570), (1495, 21256), (2392, 13285), (2657, 11960), (2990, 10628), (5314, 5980)]