87395920

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17909}}^1$

素因数の和:17983

約数の個数: 40

約数和(自身を含む): 206538120

約数和(自身を除く): 119142200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 17909, 35818, 71636, 89545, 143272, 179090, 286544, 358180, 716360, 1092449, 1432720, 2184898, 4369796, 5462245, 8739592, 10924490, 17479184, 21848980, 43697960, 87395920]

約数ペア:

[(1, 87395920), (2, 43697960), (4, 21848980), (5, 17479184), (8, 10924490), (10, 8739592), (16, 5462245), (20, 4369796), (40, 2184898), (61, 1432720), (80, 1092449), (122, 716360), (244, 358180), (305, 286544), (488, 179090), (610, 143272), (976, 89545), (1220, 71636), (2440, 35818), (4880, 17909)]