138811520

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2437}}^1$

素因数の和:2545

約数の個数: 64

約数和(自身を含む): 335712600

約数和(自身を除く): 196901080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 712, 890, 1424, 1780, 2437, 2848, 3560, 4874, 5696, 7120, 9748, 11392, 12185, 14240, 19496, 24370, 28480, 38992, 48740, 56960, 77984, 97480, 155968, 194960, 216893, 311936, 389920, 433786, 779840, 867572, 1084465, 1559680, 1735144, 2168930, 3470288, 4337860, 6940576, 8675720, 13881152, 17351440, 27762304, 34702880, 69405760, 138811520]

約数ペア:

[(1, 138811520), (2, 69405760), (4, 34702880), (5, 27762304), (8, 17351440), (10, 13881152), (16, 8675720), (20, 6940576), (32, 4337860), (40, 3470288), (64, 2168930), (80, 1735144), (89, 1559680), (128, 1084465), (160, 867572), (178, 779840), (320, 433786), (356, 389920), (445, 311936), (640, 216893), (712, 194960), (890, 155968), (1424, 97480), (1780, 77984), (2437, 56960), (2848, 48740), (3560, 38992), (4874, 28480), (5696, 24370), (7120, 19496), (9748, 14240), (11392, 12185)]