251100330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{643847}}^1$

素因数の和:643870

約数の個数: 32

約数和(自身を含む): 648998784

約数和(自身を除く): 397898454

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 643847, 1287694, 1931541, 3219235, 3863082, 6438470, 8370011, 9657705, 16740022, 19315410, 25110033, 41850055, 50220066, 83700110, 125550165, 251100330]

約数ペア:

[(1, 251100330), (2, 125550165), (3, 83700110), (5, 50220066), (6, 41850055), (10, 25110033), (13, 19315410), (15, 16740022), (26, 9657705), (30, 8370011), (39, 6438470), (65, 3863082), (78, 3219235), (130, 1931541), (195, 1287694), (390, 643847)]