678956980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{7001}}^1$

素因数の和:7396

約数の個数: 48

約数和(自身を含む): 1539823824

約数和(自身を除く): 860866844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 373, 746, 1492, 1865, 3730, 4849, 7001, 7460, 9698, 14002, 19396, 24245, 28004, 35005, 48490, 70010, 91013, 96980, 140020, 182026, 364052, 455065, 910130, 1820260, 2611373, 5222746, 10445492, 13056865, 26113730, 33947849, 52227460, 67895698, 135791396, 169739245, 339478490, 678956980]

約数ペア:

[(1, 678956980), (2, 339478490), (4, 169739245), (5, 135791396), (10, 67895698), (13, 52227460), (20, 33947849), (26, 26113730), (52, 13056865), (65, 10445492), (130, 5222746), (260, 2611373), (373, 1820260), (746, 910130), (1492, 455065), (1865, 364052), (3730, 182026), (4849, 140020), (7001, 96980), (7460, 91013), (9698, 70010), (14002, 48490), (19396, 35005), (24245, 28004)]