781212770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1423}}^1$

素因数の和:1587

約数の個数: 64

約数和(自身を含む): 1567448064

約数和(自身を除く): 786235294

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 103, 130, 205, 206, 410, 515, 533, 1030, 1066, 1339, 1423, 2665, 2678, 2846, 4223, 5330, 6695, 7115, 8446, 13390, 14230, 18499, 21115, 36998, 42230, 54899, 58343, 92495, 109798, 116686, 146569, 184990, 274495, 291715, 293138, 548990, 583430, 732845, 758459, 1465690, 1516918, 1905397, 3792295, 3810794, 6009329, 7584590, 9526985, 12018658, 19053970, 30046645, 60093290, 78121277, 156242554, 390606385, 781212770]

約数ペア:

[(1, 781212770), (2, 390606385), (5, 156242554), (10, 78121277), (13, 60093290), (26, 30046645), (41, 19053970), (65, 12018658), (82, 9526985), (103, 7584590), (130, 6009329), (205, 3810794), (206, 3792295), (410, 1905397), (515, 1516918), (533, 1465690), (1030, 758459), (1066, 732845), (1339, 583430), (1423, 548990), (2665, 293138), (2678, 291715), (2846, 274495), (4223, 184990), (5330, 146569), (6695, 116686), (7115, 109798), (8446, 92495), (13390, 58343), (14230, 54899), (18499, 42230), (21115, 36998)]