20120959875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{30643}}^1$

素因数の和:30781

約数の個数: 64

約数和(自身を含む): 35796114432

約数和(自身を除く): 15675154557

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 103, 125, 255, 309, 375, 425, 515, 1275, 1545, 1751, 2125, 2575, 5253, 6375, 7725, 8755, 12875, 26265, 30643, 38625, 43775, 91929, 131325, 153215, 218875, 459645, 520931, 656625, 766075, 1562793, 2298225, 2604655, 3156229, 3830375, 7813965, 9468687, 11491125, 13023275, 15781145, 39069825, 47343435, 53655893, 65116375, 78905725, 160967679, 195349125, 236717175, 268279465, 394528625, 804838395, 1183585875, 1341397325, 4024191975, 6706986625, 20120959875]

約数ペア:

[(1, 20120959875), (3, 6706986625), (5, 4024191975), (15, 1341397325), (17, 1183585875), (25, 804838395), (51, 394528625), (75, 268279465), (85, 236717175), (103, 195349125), (125, 160967679), (255, 78905725), (309, 65116375), (375, 53655893), (425, 47343435), (515, 39069825), (1275, 15781145), (1545, 13023275), (1751, 11491125), (2125, 9468687), (2575, 7813965), (5253, 3830375), (6375, 3156229), (7725, 2604655), (8755, 2298225), (12875, 1562793), (26265, 766075), (30643, 656625), (38625, 520931), (43775, 459645), (91929, 218875), (131325, 153215)]