128591136

素因数分解:

$2^5\times 3^2\times {\mathrm{521}}^1\times {\mathrm{857}}^1$

素因数の和:1394

約数の個数: 72

約数和(自身を含む): 366810444

約数和(自身を除く): 238219308

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 521, 857, 1042, 1563, 1714, 2084, 2571, 3126, 3428, 4168, 4689, 5142, 6252, 6856, 7713, 8336, 9378, 10284, 12504, 13712, 15426, 16672, 18756, 20568, 25008, 27424, 30852, 37512, 41136, 50016, 61704, 75024, 82272, 123408, 150048, 246816, 446497, 892994, 1339491, 1785988, 2678982, 3571976, 4018473, 5357964, 7143952, 8036946, 10715928, 14287904, 16073892, 21431856, 32147784, 42863712, 64295568, 128591136]

約数ペア:

[(1, 128591136), (2, 64295568), (3, 42863712), (4, 32147784), (6, 21431856), (8, 16073892), (9, 14287904), (12, 10715928), (16, 8036946), (18, 7143952), (24, 5357964), (32, 4018473), (36, 3571976), (48, 2678982), (72, 1785988), (96, 1339491), (144, 892994), (288, 446497), (521, 246816), (857, 150048), (1042, 123408), (1563, 82272), (1714, 75024), (2084, 61704), (2571, 50016), (3126, 41136), (3428, 37512), (4168, 30852), (4689, 27424), (5142, 25008), (6252, 20568), (6856, 18756), (7713, 16672), (8336, 15426), (9378, 13712), (10284, 12504)]