278327439

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{353}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 454603968

約数和(自身を除く): 176276529

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 293, 299, 353, 879, 897, 1059, 2637, 2691, 3177, 3809, 4589, 6739, 8119, 11427, 13767, 20217, 24357, 34281, 41301, 60651, 73071, 87607, 103429, 105547, 262821, 310287, 316641, 788463, 930861, 949923, 1344577, 2378867, 4033731, 7136601, 12101193, 21409803, 30925271, 92775813, 278327439]

約数ペア:

[(1, 278327439), (3, 92775813), (9, 30925271), (13, 21409803), (23, 12101193), (39, 7136601), (69, 4033731), (117, 2378867), (207, 1344577), (293, 949923), (299, 930861), (353, 788463), (879, 316641), (897, 310287), (1059, 262821), (2637, 105547), (2691, 103429), (3177, 87607), (3809, 73071), (4589, 60651), (6739, 41301), (8119, 34281), (11427, 24357), (13767, 20217)]