12747820

素因数分解:

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

素因数の和:778

約数の個数: 48

約数和(自身を含む): 28627200

約数和(自身を除く): 15879380

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 709, 899, 1418, 1798, 2836, 3545, 3596, 4495, 7090, 8990, 14180, 17980, 20561, 21979, 41122, 43958, 82244, 87916, 102805, 109895, 205610, 219790, 411220, 439580, 637391, 1274782, 2549564, 3186955, 6373910, 12747820]

約数ペア:

[(1, 12747820), (2, 6373910), (4, 3186955), (5, 2549564), (10, 1274782), (20, 637391), (29, 439580), (31, 411220), (58, 219790), (62, 205610), (116, 109895), (124, 102805), (145, 87916), (155, 82244), (290, 43958), (310, 41122), (580, 21979), (620, 20561), (709, 17980), (899, 14180), (1418, 8990), (1798, 7090), (2836, 4495), (3545, 3596)]