218319915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 392832000

約数和(自身を除く): 174512085

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 109, 165, 183, 199, 305, 327, 545, 597, 671, 915, 995, 1199, 1635, 2013, 2189, 2985, 3355, 3597, 5995, 6567, 6649, 10065, 10945, 12139, 17985, 19947, 21691, 32835, 33245, 36417, 60695, 65073, 73139, 99735, 108455, 133529, 182085, 219417, 238601, 325365, 365695, 400587, 667645, 715803, 1097085, 1193005, 1323151, 2002935, 3579015, 3969453, 6615755, 14554661, 19847265, 43663983, 72773305, 218319915]

約数ペア:

[(1, 218319915), (3, 72773305), (5, 43663983), (11, 19847265), (15, 14554661), (33, 6615755), (55, 3969453), (61, 3579015), (109, 2002935), (165, 1323151), (183, 1193005), (199, 1097085), (305, 715803), (327, 667645), (545, 400587), (597, 365695), (671, 325365), (915, 238601), (995, 219417), (1199, 182085), (1635, 133529), (2013, 108455), (2189, 99735), (2985, 73139), (3355, 65073), (3597, 60695), (5995, 36417), (6567, 33245), (6649, 32835), (10065, 21691), (10945, 19947), (12139, 17985)]