1990332680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{2143}}^1$

素因数の和:2299

約数の個数: 128

約数和(自身を含む): 5334958080

約数和(自身を除く): 3344625400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 107, 124, 140, 155, 214, 217, 248, 280, 310, 428, 434, 535, 620, 749, 856, 868, 1070, 1085, 1240, 1498, 1736, 2140, 2143, 2170, 2996, 3317, 3745, 4280, 4286, 4340, 5992, 6634, 7490, 8572, 8680, 10715, 13268, 14980, 15001, 16585, 17144, 21430, 23219, 26536, 29960, 30002, 33170, 42860, 46438, 60004, 66340, 66433, 75005, 85720, 92876, 116095, 120008, 132680, 132866, 150010, 185752, 229301, 232190, 265732, 300020, 332165, 458602, 464380, 465031, 531464, 600040, 664330, 917204, 928760, 930062, 1146505, 1328660, 1605107, 1834408, 1860124, 2293010, 2325155, 2657320, 3210214, 3720248, 4586020, 4650310, 6420428, 7108331, 8025535, 9172040, 9300620, 12840856, 14216662, 16051070, 18601240, 28433324, 32102140, 35541655, 49758317, 56866648, 64204280, 71083310, 99516634, 142166620, 199033268, 248791585, 284333240, 398066536, 497583170, 995166340, 1990332680]

約数ペア:

[(1, 1990332680), (2, 995166340), (4, 497583170), (5, 398066536), (7, 284333240), (8, 248791585), (10, 199033268), (14, 142166620), (20, 99516634), (28, 71083310), (31, 64204280), (35, 56866648), (40, 49758317), (56, 35541655), (62, 32102140), (70, 28433324), (107, 18601240), (124, 16051070), (140, 14216662), (155, 12840856), (214, 9300620), (217, 9172040), (248, 8025535), (280, 7108331), (310, 6420428), (428, 4650310), (434, 4586020), (535, 3720248), (620, 3210214), (749, 2657320), (856, 2325155), (868, 2293010), (1070, 1860124), (1085, 1834408), (1240, 1605107), (1498, 1328660), (1736, 1146505), (2140, 930062), (2143, 928760), (2170, 917204), (2996, 664330), (3317, 600040), (3745, 531464), (4280, 465031), (4286, 464380), (4340, 458602), (5992, 332165), (6634, 300020), (7490, 265732), (8572, 232190), (8680, 229301), (10715, 185752), (13268, 150010), (14980, 132866), (15001, 132680), (16585, 120008), (17144, 116095), (21430, 92876), (23219, 85720), (26536, 75005), (29960, 66433), (30002, 66340), (33170, 60004), (42860, 46438)]