399315700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{359}}^1$

素因数の和:614

約数の個数: 108

約数和(自身を含む): 1015247520

約数和(自身を除く): 615931820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 227, 245, 350, 359, 454, 490, 700, 718, 908, 980, 1135, 1225, 1436, 1589, 1795, 2270, 2450, 2513, 3178, 3590, 4540, 4900, 5026, 5675, 6356, 7180, 7945, 8975, 10052, 11123, 11350, 12565, 15890, 17591, 17950, 22246, 22700, 25130, 31780, 35182, 35900, 39725, 44492, 50260, 55615, 62825, 70364, 79450, 81493, 87955, 111230, 125650, 158900, 162986, 175910, 222460, 251300, 278075, 325972, 351820, 407465, 439775, 556150, 570451, 814930, 879550, 1112300, 1140902, 1629860, 1759100, 2037325, 2281804, 2852255, 3993157, 4074650, 5704510, 7986314, 8149300, 11409020, 14261275, 15972628, 19965785, 28522550, 39931570, 57045100, 79863140, 99828925, 199657850, 399315700]

約数ペア:

[(1, 399315700), (2, 199657850), (4, 99828925), (5, 79863140), (7, 57045100), (10, 39931570), (14, 28522550), (20, 19965785), (25, 15972628), (28, 14261275), (35, 11409020), (49, 8149300), (50, 7986314), (70, 5704510), (98, 4074650), (100, 3993157), (140, 2852255), (175, 2281804), (196, 2037325), (227, 1759100), (245, 1629860), (350, 1140902), (359, 1112300), (454, 879550), (490, 814930), (700, 570451), (718, 556150), (908, 439775), (980, 407465), (1135, 351820), (1225, 325972), (1436, 278075), (1589, 251300), (1795, 222460), (2270, 175910), (2450, 162986), (2513, 158900), (3178, 125650), (3590, 111230), (4540, 87955), (4900, 81493), (5026, 79450), (5675, 70364), (6356, 62825), (7180, 55615), (7945, 50260), (8975, 44492), (10052, 39725), (11123, 35900), (11350, 35182), (12565, 31780), (15890, 25130), (17591, 22700), (17950, 22246)]