2539540

素因数分解:

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

素因数の和:232

約数の個数: 48

約数和(自身を含む): 5785920

約数和(自身を除く): 3246380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 163, 164, 190, 205, 326, 380, 410, 652, 779, 815, 820, 1558, 1630, 3097, 3116, 3260, 3895, 6194, 6683, 7790, 12388, 13366, 15485, 15580, 26732, 30970, 33415, 61940, 66830, 126977, 133660, 253954, 507908, 634885, 1269770, 2539540]

約数ペア:

[(1, 2539540), (2, 1269770), (4, 634885), (5, 507908), (10, 253954), (19, 133660), (20, 126977), (38, 66830), (41, 61940), (76, 33415), (82, 30970), (95, 26732), (163, 15580), (164, 15485), (190, 13366), (205, 12388), (326, 7790), (380, 6683), (410, 6194), (652, 3895), (779, 3260), (815, 3116), (820, 3097), (1558, 1630)]