31374520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 81259200

約数和(自身を除く): 49884680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 37, 40, 43, 58, 68, 74, 85, 86, 116, 136, 145, 148, 170, 172, 185, 215, 232, 290, 296, 340, 344, 370, 430, 493, 580, 629, 680, 731, 740, 860, 986, 1073, 1160, 1247, 1258, 1462, 1480, 1591, 1720, 1972, 2146, 2465, 2494, 2516, 2924, 3145, 3182, 3655, 3944, 4292, 4930, 4988, 5032, 5365, 5848, 6235, 6290, 6364, 7310, 7955, 8584, 9860, 9976, 10730, 12470, 12580, 12728, 14620, 15910, 18241, 19720, 21199, 21460, 24940, 25160, 27047, 29240, 31820, 36482, 42398, 42920, 46139, 49880, 54094, 63640, 72964, 84796, 91205, 92278, 105995, 108188, 135235, 145928, 169592, 182410, 184556, 211990, 216376, 230695, 270470, 364820, 369112, 423980, 461390, 540940, 729640, 784363, 847960, 922780, 1081880, 1568726, 1845560, 3137452, 3921815, 6274904, 7843630, 15687260, 31374520]

約数ペア:

[(1, 31374520), (2, 15687260), (4, 7843630), (5, 6274904), (8, 3921815), (10, 3137452), (17, 1845560), (20, 1568726), (29, 1081880), (34, 922780), (37, 847960), (40, 784363), (43, 729640), (58, 540940), (68, 461390), (74, 423980), (85, 369112), (86, 364820), (116, 270470), (136, 230695), (145, 216376), (148, 211990), (170, 184556), (172, 182410), (185, 169592), (215, 145928), (232, 135235), (290, 108188), (296, 105995), (340, 92278), (344, 91205), (370, 84796), (430, 72964), (493, 63640), (580, 54094), (629, 49880), (680, 46139), (731, 42920), (740, 42398), (860, 36482), (986, 31820), (1073, 29240), (1160, 27047), (1247, 25160), (1258, 24940), (1462, 21460), (1480, 21199), (1591, 19720), (1720, 18241), (1972, 15910), (2146, 14620), (2465, 12728), (2494, 12580), (2516, 12470), (2924, 10730), (3145, 9976), (3182, 9860), (3655, 8584), (3944, 7955), (4292, 7310), (4930, 6364), (4988, 6290), (5032, 6235), (5365, 5848)]