8965720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 21772800

約数和(自身を除く): 12807080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 251, 376, 380, 470, 502, 760, 893, 940, 1004, 1255, 1786, 1880, 2008, 2510, 3572, 4465, 4769, 5020, 7144, 8930, 9538, 10040, 11797, 17860, 19076, 23594, 23845, 35720, 38152, 47188, 47690, 58985, 94376, 95380, 117970, 190760, 224143, 235940, 448286, 471880, 896572, 1120715, 1793144, 2241430, 4482860, 8965720]

約数ペア:

[(1, 8965720), (2, 4482860), (4, 2241430), (5, 1793144), (8, 1120715), (10, 896572), (19, 471880), (20, 448286), (38, 235940), (40, 224143), (47, 190760), (76, 117970), (94, 95380), (95, 94376), (152, 58985), (188, 47690), (190, 47188), (235, 38152), (251, 35720), (376, 23845), (380, 23594), (470, 19076), (502, 17860), (760, 11797), (893, 10040), (940, 9538), (1004, 8930), (1255, 7144), (1786, 5020), (1880, 4769), (2008, 4465), (2510, 3572)]