2019798620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{359}}^1\times {\mathrm{5741}}^1$

素因数の和:6123

約数の個数: 72

約数和(自身を含む): 4948685280

約数和(自身を除く): 2928886660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 359, 490, 718, 980, 1436, 1795, 2513, 3590, 5026, 5741, 7180, 10052, 11482, 12565, 17591, 22964, 25130, 28705, 35182, 40187, 50260, 57410, 70364, 80374, 87955, 114820, 160748, 175910, 200935, 281309, 351820, 401870, 562618, 803740, 1125236, 1406545, 2061019, 2813090, 4122038, 5626180, 8244076, 10305095, 14427133, 20610190, 28854266, 41220380, 57708532, 72135665, 100989931, 144271330, 201979862, 288542660, 403959724, 504949655, 1009899310, 2019798620]

約数ペア:

[(1, 2019798620), (2, 1009899310), (4, 504949655), (5, 403959724), (7, 288542660), (10, 201979862), (14, 144271330), (20, 100989931), (28, 72135665), (35, 57708532), (49, 41220380), (70, 28854266), (98, 20610190), (140, 14427133), (196, 10305095), (245, 8244076), (359, 5626180), (490, 4122038), (718, 2813090), (980, 2061019), (1436, 1406545), (1795, 1125236), (2513, 803740), (3590, 562618), (5026, 401870), (5741, 351820), (7180, 281309), (10052, 200935), (11482, 175910), (12565, 160748), (17591, 114820), (22964, 87955), (25130, 80374), (28705, 70364), (35182, 57410), (40187, 50260)]