31151120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 160

約数和(自身を含む): 97493760

約数和(自身を除く): 66342640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 389, 440, 455, 520, 560, 572, 616, 715, 728, 770, 778, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1556, 1820, 1945, 2002, 2288, 2723, 2860, 3080, 3112, 3640, 3890, 4004, 4279, 5005, 5057, 5446, 5720, 6160, 6224, 7280, 7780, 8008, 8558, 10010, 10114, 10892, 11440, 13615, 15560, 16016, 17116, 20020, 20228, 21395, 21784, 25285, 27230, 29953, 31120, 34232, 35399, 40040, 40456, 42790, 43568, 50570, 54460, 55627, 59906, 68464, 70798, 80080, 80912, 85580, 101140, 108920, 111254, 119812, 141596, 149765, 171160, 176995, 202280, 217840, 222508, 239624, 278135, 283192, 299530, 342320, 353990, 389389, 404560, 445016, 479248, 556270, 566384, 599060, 707980, 778778, 890032, 1112540, 1198120, 1415960, 1557556, 1946945, 2225080, 2396240, 2831920, 3115112, 3893890, 4450160, 6230224, 7787780, 15575560, 31151120]

約数ペア:

[(1, 31151120), (2, 15575560), (4, 7787780), (5, 6230224), (7, 4450160), (8, 3893890), (10, 3115112), (11, 2831920), (13, 2396240), (14, 2225080), (16, 1946945), (20, 1557556), (22, 1415960), (26, 1198120), (28, 1112540), (35, 890032), (40, 778778), (44, 707980), (52, 599060), (55, 566384), (56, 556270), (65, 479248), (70, 445016), (77, 404560), (80, 389389), (88, 353990), (91, 342320), (104, 299530), (110, 283192), (112, 278135), (130, 239624), (140, 222508), (143, 217840), (154, 202280), (176, 176995), (182, 171160), (208, 149765), (220, 141596), (260, 119812), (280, 111254), (286, 108920), (308, 101140), (364, 85580), (385, 80912), (389, 80080), (440, 70798), (455, 68464), (520, 59906), (560, 55627), (572, 54460), (616, 50570), (715, 43568), (728, 42790), (770, 40456), (778, 40040), (880, 35399), (910, 34232), (1001, 31120), (1040, 29953), (1144, 27230), (1232, 25285), (1430, 21784), (1456, 21395), (1540, 20228), (1556, 20020), (1820, 17116), (1945, 16016), (2002, 15560), (2288, 13615), (2723, 11440), (2860, 10892), (3080, 10114), (3112, 10010), (3640, 8558), (3890, 8008), (4004, 7780), (4279, 7280), (5005, 6224), (5057, 6160), (5446, 5720)]