28343484

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{853}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 78335712

約数和(自身を除く): 49992228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 639, 852, 853, 923, 1278, 1706, 1846, 2556, 2559, 2769, 3412, 3692, 5118, 5538, 7677, 8307, 10236, 11076, 11089, 15354, 16614, 22178, 30708, 33228, 33267, 44356, 60563, 66534, 99801, 121126, 133068, 181689, 199602, 242252, 363378, 399204, 545067, 726756, 787319, 1090134, 1574638, 2180268, 2361957, 3149276, 4723914, 7085871, 9447828, 14171742, 28343484]

約数ペア:

[(1, 28343484), (2, 14171742), (3, 9447828), (4, 7085871), (6, 4723914), (9, 3149276), (12, 2361957), (13, 2180268), (18, 1574638), (26, 1090134), (36, 787319), (39, 726756), (52, 545067), (71, 399204), (78, 363378), (117, 242252), (142, 199602), (156, 181689), (213, 133068), (234, 121126), (284, 99801), (426, 66534), (468, 60563), (639, 44356), (852, 33267), (853, 33228), (923, 30708), (1278, 22178), (1706, 16614), (1846, 15354), (2556, 11089), (2559, 11076), (2769, 10236), (3412, 8307), (3692, 7677), (5118, 5538)]