1640953864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{13681}}^1$

素因数の和:13774

約数の個数: 64

約数和(自身を含む): 3546374400

約数和(自身を除く): 1905420536

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 47, 58, 88, 94, 116, 188, 232, 319, 376, 517, 638, 1034, 1276, 1363, 2068, 2552, 2726, 4136, 5452, 10904, 13681, 14993, 27362, 29986, 54724, 59972, 109448, 119944, 150491, 300982, 396749, 601964, 643007, 793498, 1203928, 1286014, 1586996, 2572028, 3173992, 4364239, 5144056, 7073077, 8728478, 14146154, 17456956, 18647203, 28292308, 34913912, 37294406, 56584616, 74588812, 149177624, 205119233, 410238466, 820476932, 1640953864]

約数ペア:

[(1, 1640953864), (2, 820476932), (4, 410238466), (8, 205119233), (11, 149177624), (22, 74588812), (29, 56584616), (44, 37294406), (47, 34913912), (58, 28292308), (88, 18647203), (94, 17456956), (116, 14146154), (188, 8728478), (232, 7073077), (319, 5144056), (376, 4364239), (517, 3173992), (638, 2572028), (1034, 1586996), (1276, 1286014), (1363, 1203928), (2068, 793498), (2552, 643007), (2726, 601964), (4136, 396749), (5452, 300982), (10904, 150491), (13681, 119944), (14993, 109448), (27362, 59972), (29986, 54724)]