638893456

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{233}}^1\times {\mathrm{593}}^1$

素因数の和:868

約数の個数: 60

約数和(自身を含む): 1322824932

約数和(自身を除く): 683931476

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 233, 272, 289, 466, 578, 593, 932, 1156, 1186, 1864, 2312, 2372, 3728, 3961, 4624, 4744, 7922, 9488, 10081, 15844, 20162, 31688, 40324, 63376, 67337, 80648, 134674, 138169, 161296, 171377, 269348, 276338, 342754, 538696, 552676, 685508, 1077392, 1105352, 1371016, 2210704, 2348873, 2742032, 4697746, 9395492, 18790984, 37581968, 39930841, 79861682, 159723364, 319446728, 638893456]

約数ペア:

[(1, 638893456), (2, 319446728), (4, 159723364), (8, 79861682), (16, 39930841), (17, 37581968), (34, 18790984), (68, 9395492), (136, 4697746), (233, 2742032), (272, 2348873), (289, 2210704), (466, 1371016), (578, 1105352), (593, 1077392), (932, 685508), (1156, 552676), (1186, 538696), (1864, 342754), (2312, 276338), (2372, 269348), (3728, 171377), (3961, 161296), (4624, 138169), (4744, 134674), (7922, 80648), (9488, 67337), (10081, 63376), (15844, 40324), (20162, 31688)]