90581988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1213}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 248005632

約数和(自身を除く): 157423644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 127, 147, 196, 254, 294, 381, 508, 588, 762, 889, 1213, 1524, 1778, 2426, 2667, 3556, 3639, 4852, 5334, 6223, 7278, 8491, 10668, 12446, 14556, 16982, 18669, 24892, 25473, 33964, 37338, 50946, 59437, 74676, 101892, 118874, 154051, 178311, 237748, 308102, 356622, 462153, 616204, 713244, 924306, 1078357, 1848612, 2156714, 3235071, 4313428, 6470142, 7548499, 12940284, 15096998, 22645497, 30193996, 45290994, 90581988]

約数ペア:

[(1, 90581988), (2, 45290994), (3, 30193996), (4, 22645497), (6, 15096998), (7, 12940284), (12, 7548499), (14, 6470142), (21, 4313428), (28, 3235071), (42, 2156714), (49, 1848612), (84, 1078357), (98, 924306), (127, 713244), (147, 616204), (196, 462153), (254, 356622), (294, 308102), (381, 237748), (508, 178311), (588, 154051), (762, 118874), (889, 101892), (1213, 74676), (1524, 59437), (1778, 50946), (2426, 37338), (2667, 33964), (3556, 25473), (3639, 24892), (4852, 18669), (5334, 16982), (6223, 14556), (7278, 12446), (8491, 10668)]