31318840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:102

約数の個数: 144

約数和(自身を含む): 89364600

約数和(自身を除く): 58045760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 35, 38, 40, 49, 56, 58, 70, 76, 95, 98, 116, 133, 140, 145, 152, 190, 196, 203, 232, 245, 266, 280, 290, 380, 392, 406, 490, 532, 551, 580, 665, 760, 812, 841, 931, 980, 1015, 1064, 1102, 1160, 1330, 1421, 1624, 1682, 1862, 1960, 2030, 2204, 2660, 2755, 2842, 3364, 3724, 3857, 4060, 4205, 4408, 4655, 5320, 5510, 5684, 5887, 6728, 7105, 7448, 7714, 8120, 8410, 9310, 11020, 11368, 11774, 14210, 15428, 15979, 16820, 18620, 19285, 22040, 23548, 26999, 28420, 29435, 30856, 31958, 33640, 37240, 38570, 41209, 47096, 53998, 56840, 58870, 63916, 77140, 79895, 82418, 107996, 111853, 117740, 127832, 134995, 154280, 159790, 164836, 206045, 215992, 223706, 235480, 269990, 319580, 329672, 412090, 447412, 539980, 559265, 639160, 782971, 824180, 894824, 1079960, 1118530, 1565942, 1648360, 2237060, 3131884, 3914855, 4474120, 6263768, 7829710, 15659420, 31318840]

約数ペア:

[(1, 31318840), (2, 15659420), (4, 7829710), (5, 6263768), (7, 4474120), (8, 3914855), (10, 3131884), (14, 2237060), (19, 1648360), (20, 1565942), (28, 1118530), (29, 1079960), (35, 894824), (38, 824180), (40, 782971), (49, 639160), (56, 559265), (58, 539980), (70, 447412), (76, 412090), (95, 329672), (98, 319580), (116, 269990), (133, 235480), (140, 223706), (145, 215992), (152, 206045), (190, 164836), (196, 159790), (203, 154280), (232, 134995), (245, 127832), (266, 117740), (280, 111853), (290, 107996), (380, 82418), (392, 79895), (406, 77140), (490, 63916), (532, 58870), (551, 56840), (580, 53998), (665, 47096), (760, 41209), (812, 38570), (841, 37240), (931, 33640), (980, 31958), (1015, 30856), (1064, 29435), (1102, 28420), (1160, 26999), (1330, 23548), (1421, 22040), (1624, 19285), (1682, 18620), (1862, 16820), (1960, 15979), (2030, 15428), (2204, 14210), (2660, 11774), (2755, 11368), (2842, 11020), (3364, 9310), (3724, 8410), (3857, 8120), (4060, 7714), (4205, 7448), (4408, 7105), (4655, 6728), (5320, 5887), (5510, 5684)]