39888340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{709}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 87670800

約数和(自身を除く): 47782460

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 388, 485, 580, 709, 970, 1418, 1940, 2813, 2836, 3545, 5626, 7090, 11252, 14065, 14180, 20561, 28130, 41122, 56260, 68773, 82244, 102805, 137546, 205610, 275092, 343865, 411220, 687730, 1375460, 1994417, 3988834, 7977668, 9972085, 19944170, 39888340]

約数ペア:

[(1, 39888340), (2, 19944170), (4, 9972085), (5, 7977668), (10, 3988834), (20, 1994417), (29, 1375460), (58, 687730), (97, 411220), (116, 343865), (145, 275092), (194, 205610), (290, 137546), (388, 102805), (485, 82244), (580, 68773), (709, 56260), (970, 41122), (1418, 28130), (1940, 20561), (2813, 14180), (2836, 14065), (3545, 11252), (5626, 7090)]