30719286

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 74417616

約数和(自身を除く): 43698330

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 71, 78, 86, 117, 129, 142, 213, 234, 258, 387, 426, 559, 639, 774, 923, 1118, 1278, 1677, 1846, 1849, 2769, 3053, 3354, 3698, 5031, 5538, 5547, 6106, 8307, 9159, 10062, 11094, 16614, 16641, 18318, 24037, 27477, 33282, 39689, 48074, 54954, 72111, 79378, 119067, 131279, 144222, 216333, 238134, 262558, 357201, 393837, 432666, 714402, 787674, 1181511, 1706627, 2363022, 3413254, 5119881, 10239762, 15359643, 30719286]

約数ペア:

[(1, 30719286), (2, 15359643), (3, 10239762), (6, 5119881), (9, 3413254), (13, 2363022), (18, 1706627), (26, 1181511), (39, 787674), (43, 714402), (71, 432666), (78, 393837), (86, 357201), (117, 262558), (129, 238134), (142, 216333), (213, 144222), (234, 131279), (258, 119067), (387, 79378), (426, 72111), (559, 54954), (639, 48074), (774, 39689), (923, 33282), (1118, 27477), (1278, 24037), (1677, 18318), (1846, 16641), (1849, 16614), (2769, 11094), (3053, 10062), (3354, 9159), (3698, 8307), (5031, 6106), (5538, 5547)]