215125120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1606

約数の個数: 128

約数和(自身を含む): 607104000

約数和(自身を除く): 391978880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1549, 1736, 1984, 2170, 2240, 2480, 3098, 3472, 3968, 4340, 4480, 4960, 6196, 6944, 7745, 8680, 9920, 10843, 12392, 13888, 15490, 17360, 19840, 21686, 24784, 27776, 30980, 34720, 43372, 48019, 49568, 54215, 61960, 69440, 86744, 96038, 99136, 108430, 123920, 138880, 173488, 192076, 198272, 216860, 240095, 247840, 336133, 346976, 384152, 433720, 480190, 495680, 672266, 693952, 768304, 867440, 960380, 991360, 1344532, 1387904, 1536608, 1680665, 1734880, 1920760, 2689064, 3073216, 3361330, 3469760, 3841520, 5378128, 6146432, 6722660, 6939520, 7683040, 10756256, 13445320, 15366080, 21512512, 26890640, 30732160, 43025024, 53781280, 107562560, 215125120]

約数ペア:

[(1, 215125120), (2, 107562560), (4, 53781280), (5, 43025024), (7, 30732160), (8, 26890640), (10, 21512512), (14, 15366080), (16, 13445320), (20, 10756256), (28, 7683040), (31, 6939520), (32, 6722660), (35, 6146432), (40, 5378128), (56, 3841520), (62, 3469760), (64, 3361330), (70, 3073216), (80, 2689064), (112, 1920760), (124, 1734880), (128, 1680665), (140, 1536608), (155, 1387904), (160, 1344532), (217, 991360), (224, 960380), (248, 867440), (280, 768304), (310, 693952), (320, 672266), (434, 495680), (448, 480190), (496, 433720), (560, 384152), (620, 346976), (640, 336133), (868, 247840), (896, 240095), (992, 216860), (1085, 198272), (1120, 192076), (1240, 173488), (1549, 138880), (1736, 123920), (1984, 108430), (2170, 99136), (2240, 96038), (2480, 86744), (3098, 69440), (3472, 61960), (3968, 54215), (4340, 49568), (4480, 48019), (4960, 43372), (6196, 34720), (6944, 30980), (7745, 27776), (8680, 24784), (9920, 21686), (10843, 19840), (12392, 17360), (13888, 15490)]