12978212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 25815552

約数和(自身を除く): 12837340

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 83, 97, 124, 166, 194, 332, 388, 403, 806, 1079, 1261, 1612, 2158, 2522, 2573, 3007, 4316, 5044, 5146, 6014, 8051, 10292, 12028, 16102, 32204, 33449, 39091, 66898, 78182, 104663, 133796, 156364, 209326, 249581, 418652, 499162, 998324, 3244553, 6489106, 12978212]

約数ペア:

[(1, 12978212), (2, 6489106), (4, 3244553), (13, 998324), (26, 499162), (31, 418652), (52, 249581), (62, 209326), (83, 156364), (97, 133796), (124, 104663), (166, 78182), (194, 66898), (332, 39091), (388, 33449), (403, 32204), (806, 16102), (1079, 12028), (1261, 10292), (1612, 8051), (2158, 6014), (2522, 5146), (2573, 5044), (3007, 4316)]