139885640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1163}}^1$

素因数の和:1302

約数の個数: 64

約数和(自身を含む): 328527360

約数和(自身を除く): 188641720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 388, 485, 620, 776, 970, 1163, 1240, 1940, 2326, 3007, 3880, 4652, 5815, 6014, 9304, 11630, 12028, 15035, 23260, 24056, 30070, 36053, 46520, 60140, 72106, 112811, 120280, 144212, 180265, 225622, 288424, 360530, 451244, 564055, 721060, 902488, 1128110, 1442120, 2256220, 3497141, 4512440, 6994282, 13988564, 17485705, 27977128, 34971410, 69942820, 139885640]

約数ペア:

[(1, 139885640), (2, 69942820), (4, 34971410), (5, 27977128), (8, 17485705), (10, 13988564), (20, 6994282), (31, 4512440), (40, 3497141), (62, 2256220), (97, 1442120), (124, 1128110), (155, 902488), (194, 721060), (248, 564055), (310, 451244), (388, 360530), (485, 288424), (620, 225622), (776, 180265), (970, 144212), (1163, 120280), (1240, 112811), (1940, 72106), (2326, 60140), (3007, 46520), (3880, 36053), (4652, 30070), (5815, 24056), (6014, 23260), (9304, 15035), (11630, 12028)]