128779845

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 222926208

約数和(自身を除く): 94146363

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 289, 305, 487, 867, 915, 1037, 1445, 1461, 2435, 3111, 4335, 5185, 7305, 8279, 15555, 17629, 24837, 29707, 41395, 52887, 88145, 89121, 124185, 140743, 148535, 264435, 422229, 445605, 505019, 703715, 1515057, 2111145, 2525095, 7575285, 8585323, 25755969, 42926615, 128779845]

約数ペア:

[(1, 128779845), (3, 42926615), (5, 25755969), (15, 8585323), (17, 7575285), (51, 2525095), (61, 2111145), (85, 1515057), (183, 703715), (255, 505019), (289, 445605), (305, 422229), (487, 264435), (867, 148535), (915, 140743), (1037, 124185), (1445, 89121), (1461, 88145), (2435, 52887), (3111, 41395), (4335, 29707), (5185, 24837), (7305, 17629), (8279, 15555)]