2640240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:231

約数の個数: 120

約数和(自身を含む): 9381840

約数和(自身を除く): 6741600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 193, 228, 240, 285, 304, 342, 360, 380, 386, 456, 570, 579, 684, 720, 760, 772, 855, 912, 965, 1140, 1158, 1368, 1520, 1544, 1710, 1737, 1930, 2280, 2316, 2736, 2895, 3088, 3420, 3474, 3667, 3860, 4560, 4632, 5790, 6840, 6948, 7334, 7720, 8685, 9264, 11001, 11580, 13680, 13896, 14668, 15440, 17370, 18335, 22002, 23160, 27792, 29336, 33003, 34740, 36670, 44004, 46320, 55005, 58672, 66006, 69480, 73340, 88008, 110010, 132012, 138960, 146680, 165015, 176016, 220020, 264024, 293360, 330030, 440040, 528048, 660060, 880080, 1320120, 2640240]

約数ペア:

[(1, 2640240), (2, 1320120), (3, 880080), (4, 660060), (5, 528048), (6, 440040), (8, 330030), (9, 293360), (10, 264024), (12, 220020), (15, 176016), (16, 165015), (18, 146680), (19, 138960), (20, 132012), (24, 110010), (30, 88008), (36, 73340), (38, 69480), (40, 66006), (45, 58672), (48, 55005), (57, 46320), (60, 44004), (72, 36670), (76, 34740), (80, 33003), (90, 29336), (95, 27792), (114, 23160), (120, 22002), (144, 18335), (152, 17370), (171, 15440), (180, 14668), (190, 13896), (193, 13680), (228, 11580), (240, 11001), (285, 9264), (304, 8685), (342, 7720), (360, 7334), (380, 6948), (386, 6840), (456, 5790), (570, 4632), (579, 4560), (684, 3860), (720, 3667), (760, 3474), (772, 3420), (855, 3088), (912, 2895), (965, 2736), (1140, 2316), (1158, 2280), (1368, 1930), (1520, 1737), (1544, 1710)]