1640708972

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^2\times {\mathrm{229}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 3419408160

約数和(自身を除く): 1778699188

約数列:

[1, 2, 4, 7, 14, 28, 41, 79, 82, 158, 164, 229, 287, 316, 458, 553, 574, 916, 1106, 1148, 1603, 2212, 3206, 3239, 6241, 6412, 6478, 9389, 12482, 12956, 18091, 18778, 22673, 24964, 36182, 37556, 43687, 45346, 65723, 72364, 87374, 90692, 126637, 131446, 174748, 253274, 255881, 262892, 506548, 511762, 741731, 1023524, 1429189, 1483462, 1791167, 2858378, 2966924, 3582334, 5192117, 5716756, 7164668, 10004323, 10384234, 20008646, 20768468, 40017292, 58596749, 117193498, 234386996, 410177243, 820354486, 1640708972]

約数ペア:

[(1, 1640708972), (2, 820354486), (4, 410177243), (7, 234386996), (14, 117193498), (28, 58596749), (41, 40017292), (79, 20768468), (82, 20008646), (158, 10384234), (164, 10004323), (229, 7164668), (287, 5716756), (316, 5192117), (458, 3582334), (553, 2966924), (574, 2858378), (916, 1791167), (1106, 1483462), (1148, 1429189), (1603, 1023524), (2212, 741731), (3206, 511762), (3239, 506548), (6241, 262892), (6412, 255881), (6478, 253274), (9389, 174748), (12482, 131446), (12956, 126637), (18091, 90692), (18778, 87374), (22673, 72364), (24964, 65723), (36182, 45346), (37556, 43687)]