28787406

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 34250034

約数列:

[1, 2, 3, 6, 31, 37, 47, 62, 74, 89, 93, 94, 111, 141, 178, 186, 222, 267, 282, 534, 1147, 1457, 1739, 2294, 2759, 2914, 3293, 3441, 3478, 4183, 4371, 5217, 5518, 6586, 6882, 8277, 8366, 8742, 9879, 10434, 12549, 16554, 19758, 25098, 53909, 102083, 107818, 129673, 154771, 161727, 204166, 259346, 306249, 309542, 323454, 389019, 464313, 612498, 778038, 928626, 4797901, 9595802, 14393703, 28787406]

約数ペア:

[(1, 28787406), (2, 14393703), (3, 9595802), (6, 4797901), (31, 928626), (37, 778038), (47, 612498), (62, 464313), (74, 389019), (89, 323454), (93, 309542), (94, 306249), (111, 259346), (141, 204166), (178, 161727), (186, 154771), (222, 129673), (267, 107818), (282, 102083), (534, 53909), (1147, 25098), (1457, 19758), (1739, 16554), (2294, 12549), (2759, 10434), (2914, 9879), (3293, 8742), (3441, 8366), (3478, 8277), (4183, 6882), (4371, 6586), (5217, 5518)]