31438540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 81285120

約数和(自身を除く): 49846580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 53, 70, 76, 95, 106, 133, 140, 190, 212, 223, 265, 266, 371, 380, 446, 530, 532, 665, 742, 892, 1007, 1060, 1115, 1330, 1484, 1561, 1855, 2014, 2230, 2660, 3122, 3710, 4028, 4237, 4460, 5035, 6244, 7049, 7420, 7805, 8474, 10070, 11819, 14098, 15610, 16948, 20140, 21185, 23638, 28196, 29659, 31220, 35245, 42370, 47276, 59095, 59318, 70490, 82733, 84740, 118190, 118636, 140980, 148295, 165466, 224561, 236380, 296590, 330932, 413665, 449122, 593180, 827330, 898244, 1122805, 1571927, 1654660, 2245610, 3143854, 4491220, 6287708, 7859635, 15719270, 31438540]

約数ペア:

[(1, 31438540), (2, 15719270), (4, 7859635), (5, 6287708), (7, 4491220), (10, 3143854), (14, 2245610), (19, 1654660), (20, 1571927), (28, 1122805), (35, 898244), (38, 827330), (53, 593180), (70, 449122), (76, 413665), (95, 330932), (106, 296590), (133, 236380), (140, 224561), (190, 165466), (212, 148295), (223, 140980), (265, 118636), (266, 118190), (371, 84740), (380, 82733), (446, 70490), (530, 59318), (532, 59095), (665, 47276), (742, 42370), (892, 35245), (1007, 31220), (1060, 29659), (1115, 28196), (1330, 23638), (1484, 21185), (1561, 20140), (1855, 16948), (2014, 15610), (2230, 14098), (2660, 11819), (3122, 10070), (3710, 8474), (4028, 7805), (4237, 7420), (4460, 7049), (5035, 6244)]