256693790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 502329600

約数和(自身を除く): 245635810

約数列:

[1, 2, 5, 10, 29, 37, 47, 58, 74, 94, 145, 185, 235, 290, 370, 470, 509, 1018, 1073, 1363, 1739, 2146, 2545, 2726, 3478, 5090, 5365, 6815, 8695, 10730, 13630, 14761, 17390, 18833, 23923, 29522, 37666, 47846, 50431, 73805, 94165, 100862, 119615, 147610, 188330, 239230, 252155, 504310, 546157, 693767, 885151, 1092314, 1387534, 1770302, 2730785, 3468835, 4425755, 5461570, 6937670, 8851510, 25669379, 51338758, 128346895, 256693790]

約数ペア:

[(1, 256693790), (2, 128346895), (5, 51338758), (10, 25669379), (29, 8851510), (37, 6937670), (47, 5461570), (58, 4425755), (74, 3468835), (94, 2730785), (145, 1770302), (185, 1387534), (235, 1092314), (290, 885151), (370, 693767), (470, 546157), (509, 504310), (1018, 252155), (1073, 239230), (1363, 188330), (1739, 147610), (2146, 119615), (2545, 100862), (2726, 94165), (3478, 73805), (5090, 50431), (5365, 47846), (6815, 37666), (8695, 29522), (10730, 23923), (13630, 18833), (14761, 17390)]