123720240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{73643}}^1$

素因数の和:73666

約数の個数: 80

約数和(自身を含む): 438329088

約数和(自身を除く): 314608848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 73643, 147286, 220929, 294572, 368215, 441858, 515501, 589144, 736430, 883716, 1031002, 1104645, 1178288, 1472860, 1546503, 1767432, 2062004, 2209290, 2577505, 2945720, 3093006, 3534864, 4124008, 4418580, 5155010, 5891440, 6186012, 7732515, 8248016, 8837160, 10310020, 12372024, 15465030, 17674320, 20620040, 24744048, 30930060, 41240080, 61860120, 123720240]

約数ペア:

[(1, 123720240), (2, 61860120), (3, 41240080), (4, 30930060), (5, 24744048), (6, 20620040), (7, 17674320), (8, 15465030), (10, 12372024), (12, 10310020), (14, 8837160), (15, 8248016), (16, 7732515), (20, 6186012), (21, 5891440), (24, 5155010), (28, 4418580), (30, 4124008), (35, 3534864), (40, 3093006), (42, 2945720), (48, 2577505), (56, 2209290), (60, 2062004), (70, 1767432), (80, 1546503), (84, 1472860), (105, 1178288), (112, 1104645), (120, 1031002), (140, 883716), (168, 736430), (210, 589144), (240, 515501), (280, 441858), (336, 368215), (420, 294572), (560, 220929), (840, 147286), (1680, 73643)]