31869550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:781

約数の個数: 48

約数和(自身を含む): 63388800

約数和(自身を除く): 31519250

約数列:

[1, 2, 5, 10, 25, 29, 31, 50, 58, 62, 145, 155, 290, 310, 709, 725, 775, 899, 1418, 1450, 1550, 1798, 3545, 4495, 7090, 8990, 17725, 20561, 21979, 22475, 35450, 41122, 43958, 44950, 102805, 109895, 205610, 219790, 514025, 549475, 637391, 1028050, 1098950, 1274782, 3186955, 6373910, 15934775, 31869550]

約数ペア:

[(1, 31869550), (2, 15934775), (5, 6373910), (10, 3186955), (25, 1274782), (29, 1098950), (31, 1028050), (50, 637391), (58, 549475), (62, 514025), (145, 219790), (155, 205610), (290, 109895), (310, 102805), (709, 44950), (725, 43958), (775, 41122), (899, 35450), (1418, 22475), (1450, 21979), (1550, 20561), (1798, 17725), (3545, 8990), (4495, 7090)]