31521840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:699

約数の個数: 160

約数和(自身を含む): 115706880

約数和(自身を除く): 84185040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 42, 48, 56, 58, 60, 70, 80, 84, 87, 105, 112, 116, 120, 140, 145, 168, 174, 203, 210, 232, 240, 280, 290, 336, 348, 406, 420, 435, 464, 560, 580, 609, 647, 696, 812, 840, 870, 1015, 1160, 1218, 1294, 1392, 1624, 1680, 1740, 1941, 2030, 2320, 2436, 2588, 3045, 3235, 3248, 3480, 3882, 4060, 4529, 4872, 5176, 6090, 6470, 6960, 7764, 8120, 9058, 9705, 9744, 10352, 12180, 12940, 13587, 15528, 16240, 18116, 18763, 19410, 22645, 24360, 25880, 27174, 31056, 36232, 37526, 38820, 45290, 48720, 51760, 54348, 56289, 67935, 72464, 75052, 77640, 90580, 93815, 108696, 112578, 131341, 135870, 150104, 155280, 181160, 187630, 217392, 225156, 262682, 271740, 281445, 300208, 362320, 375260, 394023, 450312, 525364, 543480, 562890, 656705, 750520, 788046, 900624, 1050728, 1086960, 1125780, 1313410, 1501040, 1576092, 1970115, 2101456, 2251560, 2626820, 3152184, 3940230, 4503120, 5253640, 6304368, 7880460, 10507280, 15760920, 31521840]

約数ペア:

[(1, 31521840), (2, 15760920), (3, 10507280), (4, 7880460), (5, 6304368), (6, 5253640), (7, 4503120), (8, 3940230), (10, 3152184), (12, 2626820), (14, 2251560), (15, 2101456), (16, 1970115), (20, 1576092), (21, 1501040), (24, 1313410), (28, 1125780), (29, 1086960), (30, 1050728), (35, 900624), (40, 788046), (42, 750520), (48, 656705), (56, 562890), (58, 543480), (60, 525364), (70, 450312), (80, 394023), (84, 375260), (87, 362320), (105, 300208), (112, 281445), (116, 271740), (120, 262682), (140, 225156), (145, 217392), (168, 187630), (174, 181160), (203, 155280), (210, 150104), (232, 135870), (240, 131341), (280, 112578), (290, 108696), (336, 93815), (348, 90580), (406, 77640), (420, 75052), (435, 72464), (464, 67935), (560, 56289), (580, 54348), (609, 51760), (647, 48720), (696, 45290), (812, 38820), (840, 37526), (870, 36232), (1015, 31056), (1160, 27174), (1218, 25880), (1294, 24360), (1392, 22645), (1624, 19410), (1680, 18763), (1740, 18116), (1941, 16240), (2030, 15528), (2320, 13587), (2436, 12940), (2588, 12180), (3045, 10352), (3235, 9744), (3248, 9705), (3480, 9058), (3882, 8120), (4060, 7764), (4529, 6960), (4872, 6470), (5176, 6090)]