12697700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 29893920

約数和(自身を除く): 17196220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 163, 164, 190, 205, 326, 380, 410, 475, 652, 779, 815, 820, 950, 1025, 1558, 1630, 1900, 2050, 3097, 3116, 3260, 3895, 4075, 4100, 6194, 6683, 7790, 8150, 12388, 13366, 15485, 15580, 16300, 19475, 26732, 30970, 33415, 38950, 61940, 66830, 77425, 77900, 126977, 133660, 154850, 167075, 253954, 309700, 334150, 507908, 634885, 668300, 1269770, 2539540, 3174425, 6348850, 12697700]

約数ペア:

[(1, 12697700), (2, 6348850), (4, 3174425), (5, 2539540), (10, 1269770), (19, 668300), (20, 634885), (25, 507908), (38, 334150), (41, 309700), (50, 253954), (76, 167075), (82, 154850), (95, 133660), (100, 126977), (163, 77900), (164, 77425), (190, 66830), (205, 61940), (326, 38950), (380, 33415), (410, 30970), (475, 26732), (652, 19475), (779, 16300), (815, 15580), (820, 15485), (950, 13366), (1025, 12388), (1558, 8150), (1630, 7790), (1900, 6683), (2050, 6194), (3097, 4100), (3116, 4075), (3260, 3895)]