31318760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 83980800

約数和(自身を除く): 52662040

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 53, 55, 68, 79, 85, 88, 106, 110, 136, 158, 170, 187, 212, 220, 265, 316, 340, 374, 395, 424, 440, 530, 583, 632, 680, 748, 790, 869, 901, 935, 1060, 1166, 1343, 1496, 1580, 1738, 1802, 1870, 2120, 2332, 2686, 2915, 3160, 3476, 3604, 3740, 4187, 4345, 4505, 4664, 5372, 5830, 6715, 6952, 7208, 7480, 8374, 8690, 9010, 9911, 10744, 11660, 13430, 14773, 16748, 17380, 18020, 19822, 20935, 23320, 26860, 29546, 33496, 34760, 36040, 39644, 41870, 46057, 49555, 53720, 59092, 71179, 73865, 79288, 83740, 92114, 99110, 118184, 142358, 147730, 167480, 184228, 198220, 230285, 284716, 295460, 355895, 368456, 396440, 460570, 569432, 590920, 711790, 782969, 921140, 1423580, 1565938, 1842280, 2847160, 3131876, 3914845, 6263752, 7829690, 15659380, 31318760]

約数ペア:

[(1, 31318760), (2, 15659380), (4, 7829690), (5, 6263752), (8, 3914845), (10, 3131876), (11, 2847160), (17, 1842280), (20, 1565938), (22, 1423580), (34, 921140), (40, 782969), (44, 711790), (53, 590920), (55, 569432), (68, 460570), (79, 396440), (85, 368456), (88, 355895), (106, 295460), (110, 284716), (136, 230285), (158, 198220), (170, 184228), (187, 167480), (212, 147730), (220, 142358), (265, 118184), (316, 99110), (340, 92114), (374, 83740), (395, 79288), (424, 73865), (440, 71179), (530, 59092), (583, 53720), (632, 49555), (680, 46057), (748, 41870), (790, 39644), (869, 36040), (901, 34760), (935, 33496), (1060, 29546), (1166, 26860), (1343, 23320), (1496, 20935), (1580, 19822), (1738, 18020), (1802, 17380), (1870, 16748), (2120, 14773), (2332, 13430), (2686, 11660), (2915, 10744), (3160, 9911), (3476, 9010), (3604, 8690), (3740, 8374), (4187, 7480), (4345, 7208), (4505, 6952), (4664, 6715), (5372, 5830)]