204525555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:740

約数の個数: 64

約数和(自身を含む): 377395200

約数和(自身を除く): 172869645

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 103, 195, 221, 255, 309, 515, 599, 663, 1105, 1339, 1545, 1751, 1797, 2995, 3315, 4017, 5253, 6695, 7787, 8755, 8985, 10183, 20085, 22763, 23361, 26265, 30549, 38935, 50915, 61697, 68289, 113815, 116805, 132379, 152745, 185091, 308485, 341445, 397137, 661895, 802061, 925455, 1048849, 1985685, 2406183, 3146547, 4010305, 5244245, 12030915, 13635037, 15732735, 40905111, 68175185, 204525555]

約数ペア:

[(1, 204525555), (3, 68175185), (5, 40905111), (13, 15732735), (15, 13635037), (17, 12030915), (39, 5244245), (51, 4010305), (65, 3146547), (85, 2406183), (103, 1985685), (195, 1048849), (221, 925455), (255, 802061), (309, 661895), (515, 397137), (599, 341445), (663, 308485), (1105, 185091), (1339, 152745), (1545, 132379), (1751, 116805), (1797, 113815), (2995, 68289), (3315, 61697), (4017, 50915), (5253, 38935), (6695, 30549), (7787, 26265), (8755, 23361), (8985, 22763), (10183, 20085)]