138521640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1619}}^1$

素因数の和:1687

約数の個数: 128

約数和(自身を含む): 447897600

約数和(自身を除く): 309375960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 372, 460, 465, 552, 620, 690, 713, 744, 920, 930, 1240, 1380, 1426, 1619, 1860, 2139, 2760, 2852, 3238, 3565, 3720, 4278, 4857, 5704, 6476, 7130, 8095, 8556, 9714, 10695, 12952, 14260, 16190, 17112, 19428, 21390, 24285, 28520, 32380, 37237, 38856, 42780, 48570, 50189, 64760, 74474, 85560, 97140, 100378, 111711, 148948, 150567, 186185, 194280, 200756, 223422, 250945, 297896, 301134, 372370, 401512, 446844, 501890, 558555, 602268, 744740, 752835, 893688, 1003780, 1117110, 1154347, 1204536, 1489480, 1505670, 2007560, 2234220, 2308694, 3011340, 3463041, 4468440, 4617388, 5771735, 6022680, 6926082, 9234776, 11543470, 13852164, 17315205, 23086940, 27704328, 34630410, 46173880, 69260820, 138521640]

約数ペア:

[(1, 138521640), (2, 69260820), (3, 46173880), (4, 34630410), (5, 27704328), (6, 23086940), (8, 17315205), (10, 13852164), (12, 11543470), (15, 9234776), (20, 6926082), (23, 6022680), (24, 5771735), (30, 4617388), (31, 4468440), (40, 3463041), (46, 3011340), (60, 2308694), (62, 2234220), (69, 2007560), (92, 1505670), (93, 1489480), (115, 1204536), (120, 1154347), (124, 1117110), (138, 1003780), (155, 893688), (184, 752835), (186, 744740), (230, 602268), (248, 558555), (276, 501890), (310, 446844), (345, 401512), (372, 372370), (460, 301134), (465, 297896), (552, 250945), (620, 223422), (690, 200756), (713, 194280), (744, 186185), (920, 150567), (930, 148948), (1240, 111711), (1380, 100378), (1426, 97140), (1619, 85560), (1860, 74474), (2139, 64760), (2760, 50189), (2852, 48570), (3238, 42780), (3565, 38856), (3720, 37237), (4278, 32380), (4857, 28520), (5704, 24285), (6476, 21390), (7130, 19428), (8095, 17112), (8556, 16190), (9714, 14260), (10695, 12952)]