12171220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 26869248

約数和(自身を除く): 14698028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 293, 310, 335, 586, 620, 670, 1172, 1340, 1465, 2077, 2930, 4154, 5860, 8308, 9083, 10385, 18166, 19631, 20770, 36332, 39262, 41540, 45415, 78524, 90830, 98155, 181660, 196310, 392620, 608561, 1217122, 2434244, 3042805, 6085610, 12171220]

約数ペア:

[(1, 12171220), (2, 6085610), (4, 3042805), (5, 2434244), (10, 1217122), (20, 608561), (31, 392620), (62, 196310), (67, 181660), (124, 98155), (134, 90830), (155, 78524), (268, 45415), (293, 41540), (310, 39262), (335, 36332), (586, 20770), (620, 19631), (670, 18166), (1172, 10385), (1340, 9083), (1465, 8308), (2077, 5860), (2930, 4154)]