197344760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2609}}^1$

素因数の和:2712

約数の個数: 64

約数和(自身を含む): 466041600

約数和(自身を除く): 268696840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 2609, 3782, 5218, 7564, 9455, 10436, 13045, 15128, 18910, 20872, 26090, 37820, 52180, 75640, 80879, 104360, 159149, 161758, 318298, 323516, 404395, 636596, 647032, 795745, 808790, 1273192, 1591490, 1617580, 3182980, 3235160, 4933619, 6365960, 9867238, 19734476, 24668095, 39468952, 49336190, 98672380, 197344760]

約数ペア:

[(1, 197344760), (2, 98672380), (4, 49336190), (5, 39468952), (8, 24668095), (10, 19734476), (20, 9867238), (31, 6365960), (40, 4933619), (61, 3235160), (62, 3182980), (122, 1617580), (124, 1591490), (155, 1273192), (244, 808790), (248, 795745), (305, 647032), (310, 636596), (488, 404395), (610, 323516), (620, 318298), (1220, 161758), (1240, 159149), (1891, 104360), (2440, 80879), (2609, 75640), (3782, 52180), (5218, 37820), (7564, 26090), (9455, 20872), (10436, 18910), (13045, 15128)]