638448496

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{41609}}^1$

素因数の和:41761

約数の個数: 40

約数和(自身を含む): 1424060640

約数和(自身を除く): 785612144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1918, 2192, 3836, 7672, 15344, 41609, 83218, 166436, 291263, 332872, 582526, 665744, 1165052, 2330104, 4660208, 5700433, 11400866, 22801732, 39903031, 45603464, 79806062, 91206928, 159612124, 319224248, 638448496]

約数ペア:

[(1, 638448496), (2, 319224248), (4, 159612124), (7, 91206928), (8, 79806062), (14, 45603464), (16, 39903031), (28, 22801732), (56, 11400866), (112, 5700433), (137, 4660208), (274, 2330104), (548, 1165052), (959, 665744), (1096, 582526), (1918, 332872), (2192, 291263), (3836, 166436), (7672, 83218), (15344, 41609)]