28554860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 33679060

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 359, 388, 410, 485, 718, 820, 970, 1436, 1795, 1940, 3590, 3977, 7180, 7954, 14719, 15908, 19885, 29438, 34823, 39770, 58876, 69646, 73595, 79540, 139292, 147190, 174115, 294380, 348230, 696460, 1427743, 2855486, 5710972, 7138715, 14277430, 28554860]

約数ペア:

[(1, 28554860), (2, 14277430), (4, 7138715), (5, 5710972), (10, 2855486), (20, 1427743), (41, 696460), (82, 348230), (97, 294380), (164, 174115), (194, 147190), (205, 139292), (359, 79540), (388, 73595), (410, 69646), (485, 58876), (718, 39770), (820, 34823), (970, 29438), (1436, 19885), (1795, 15908), (1940, 14719), (3590, 7954), (3977, 7180)]