19612440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 64331280

約数和(自身を除く): 44718840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 347, 360, 471, 628, 694, 785, 942, 1041, 1256, 1388, 1413, 1570, 1735, 1884, 2082, 2355, 2776, 2826, 3123, 3140, 3470, 3768, 4164, 4710, 5205, 5652, 6246, 6280, 6940, 7065, 8328, 9420, 10410, 11304, 12492, 13880, 14130, 15615, 18840, 20820, 24984, 28260, 31230, 41640, 54479, 56520, 62460, 108958, 124920, 163437, 217916, 272395, 326874, 435832, 490311, 544790, 653748, 817185, 980622, 1089580, 1307496, 1634370, 1961244, 2179160, 2451555, 3268740, 3922488, 4903110, 6537480, 9806220, 19612440]

約数ペア:

[(1, 19612440), (2, 9806220), (3, 6537480), (4, 4903110), (5, 3922488), (6, 3268740), (8, 2451555), (9, 2179160), (10, 1961244), (12, 1634370), (15, 1307496), (18, 1089580), (20, 980622), (24, 817185), (30, 653748), (36, 544790), (40, 490311), (45, 435832), (60, 326874), (72, 272395), (90, 217916), (120, 163437), (157, 124920), (180, 108958), (314, 62460), (347, 56520), (360, 54479), (471, 41640), (628, 31230), (694, 28260), (785, 24984), (942, 20820), (1041, 18840), (1256, 15615), (1388, 14130), (1413, 13880), (1570, 12492), (1735, 11304), (1884, 10410), (2082, 9420), (2355, 8328), (2776, 7065), (2826, 6940), (3123, 6280), (3140, 6246), (3470, 5652), (3768, 5205), (4164, 4710)]