18888660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 192

約数和(自身を含む): 70963200

約数和(自身を除く): 52074540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 263, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 526, 532, 540, 570, 630, 665, 684, 756, 789, 798, 855, 945, 1026, 1052, 1140, 1197, 1260, 1315, 1330, 1578, 1596, 1710, 1841, 1890, 1995, 2052, 2367, 2394, 2565, 2630, 2660, 3156, 3420, 3591, 3682, 3780, 3945, 3990, 4734, 4788, 4997, 5130, 5260, 5523, 5985, 7101, 7182, 7364, 7890, 7980, 9205, 9468, 9994, 10260, 11046, 11835, 11970, 14202, 14364, 14991, 15780, 16569, 17955, 18410, 19988, 22092, 23670, 23940, 24985, 27615, 28404, 29982, 33138, 34979, 35505, 35910, 36820, 44973, 47340, 49707, 49970, 55230, 59964, 66276, 69958, 71010, 71820, 74955, 82845, 89946, 99414, 99940, 104937, 110460, 134919, 139916, 142020, 149910, 165690, 174895, 179892, 198828, 209874, 224865, 248535, 269838, 299820, 314811, 331380, 349790, 419748, 449730, 497070, 524685, 539676, 629622, 674595, 699580, 899460, 944433, 994140, 1049370, 1259244, 1349190, 1574055, 1888866, 2098740, 2698380, 3148110, 3777732, 4722165, 6296220, 9444330, 18888660]

約数ペア:

[(1, 18888660), (2, 9444330), (3, 6296220), (4, 4722165), (5, 3777732), (6, 3148110), (7, 2698380), (9, 2098740), (10, 1888866), (12, 1574055), (14, 1349190), (15, 1259244), (18, 1049370), (19, 994140), (20, 944433), (21, 899460), (27, 699580), (28, 674595), (30, 629622), (35, 539676), (36, 524685), (38, 497070), (42, 449730), (45, 419748), (54, 349790), (57, 331380), (60, 314811), (63, 299820), (70, 269838), (76, 248535), (84, 224865), (90, 209874), (95, 198828), (105, 179892), (108, 174895), (114, 165690), (126, 149910), (133, 142020), (135, 139916), (140, 134919), (171, 110460), (180, 104937), (189, 99940), (190, 99414), (210, 89946), (228, 82845), (252, 74955), (263, 71820), (266, 71010), (270, 69958), (285, 66276), (315, 59964), (342, 55230), (378, 49970), (380, 49707), (399, 47340), (420, 44973), (513, 36820), (526, 35910), (532, 35505), (540, 34979), (570, 33138), (630, 29982), (665, 28404), (684, 27615), (756, 24985), (789, 23940), (798, 23670), (855, 22092), (945, 19988), (1026, 18410), (1052, 17955), (1140, 16569), (1197, 15780), (1260, 14991), (1315, 14364), (1330, 14202), (1578, 11970), (1596, 11835), (1710, 11046), (1841, 10260), (1890, 9994), (1995, 9468), (2052, 9205), (2367, 7980), (2394, 7890), (2565, 7364), (2630, 7182), (2660, 7101), (3156, 5985), (3420, 5523), (3591, 5260), (3682, 5130), (3780, 4997), (3945, 4788), (3990, 4734)]