275643560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 631065600

約数和(自身を除く): 355422040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 191, 218, 331, 382, 436, 545, 662, 764, 872, 955, 1090, 1324, 1528, 1655, 1910, 2180, 2648, 3310, 3820, 4360, 6620, 7640, 13240, 20819, 36079, 41638, 63221, 72158, 83276, 104095, 126442, 144316, 166552, 180395, 208190, 252884, 288632, 316105, 360790, 416380, 505768, 632210, 721580, 832760, 1264420, 1443160, 2528840, 6891089, 13782178, 27564356, 34455445, 55128712, 68910890, 137821780, 275643560]

約数ペア:

[(1, 275643560), (2, 137821780), (4, 68910890), (5, 55128712), (8, 34455445), (10, 27564356), (20, 13782178), (40, 6891089), (109, 2528840), (191, 1443160), (218, 1264420), (331, 832760), (382, 721580), (436, 632210), (545, 505768), (662, 416380), (764, 360790), (872, 316105), (955, 288632), (1090, 252884), (1324, 208190), (1528, 180395), (1655, 166552), (1910, 144316), (2180, 126442), (2648, 104095), (3310, 83276), (3820, 72158), (4360, 63221), (6620, 41638), (7640, 36079), (13240, 20819)]