821560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:100

約数の個数: 64

約数和(自身を含む): 2073600

約数和(自身を除く): 1252040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 47, 76, 92, 94, 95, 115, 152, 184, 188, 190, 230, 235, 376, 380, 437, 460, 470, 760, 874, 893, 920, 940, 1081, 1748, 1786, 1880, 2162, 2185, 3496, 3572, 4324, 4370, 4465, 5405, 7144, 8648, 8740, 8930, 10810, 17480, 17860, 20539, 21620, 35720, 41078, 43240, 82156, 102695, 164312, 205390, 410780, 821560]

約数ペア:

[(1, 821560), (2, 410780), (4, 205390), (5, 164312), (8, 102695), (10, 82156), (19, 43240), (20, 41078), (23, 35720), (38, 21620), (40, 20539), (46, 17860), (47, 17480), (76, 10810), (92, 8930), (94, 8740), (95, 8648), (115, 7144), (152, 5405), (184, 4465), (188, 4370), (190, 4324), (230, 3572), (235, 3496), (376, 2185), (380, 2162), (437, 1880), (460, 1786), (470, 1748), (760, 1081), (874, 940), (893, 920)]