18657296

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 26339824

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 41, 56, 68, 82, 112, 119, 136, 164, 238, 239, 272, 287, 328, 476, 478, 574, 656, 697, 952, 956, 1148, 1394, 1673, 1904, 1912, 2296, 2788, 3346, 3824, 4063, 4592, 4879, 5576, 6692, 8126, 9758, 9799, 11152, 13384, 16252, 19516, 19598, 26768, 28441, 32504, 39032, 39196, 56882, 65008, 68593, 78064, 78392, 113764, 137186, 156784, 166583, 227528, 274372, 333166, 455056, 548744, 666332, 1097488, 1166081, 1332664, 2332162, 2665328, 4664324, 9328648, 18657296]

約数ペア:

[(1, 18657296), (2, 9328648), (4, 4664324), (7, 2665328), (8, 2332162), (14, 1332664), (16, 1166081), (17, 1097488), (28, 666332), (34, 548744), (41, 455056), (56, 333166), (68, 274372), (82, 227528), (112, 166583), (119, 156784), (136, 137186), (164, 113764), (238, 78392), (239, 78064), (272, 68593), (287, 65008), (328, 56882), (476, 39196), (478, 39032), (574, 32504), (656, 28441), (697, 26768), (952, 19598), (956, 19516), (1148, 16252), (1394, 13384), (1673, 11152), (1904, 9799), (1912, 9758), (2296, 8126), (2788, 6692), (3346, 5576), (3824, 4879), (4063, 4592)]