257287788478

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1\times {\mathrm{8669}}^1$

素因数の和:10273

約数の個数: 64

約数和(自身を含む): 468150036480

約数和(自身を除く): 210862248002

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 161, 322, 427, 854, 1403, 1511, 2806, 3022, 8669, 9821, 10577, 17338, 19642, 21154, 34753, 60683, 69506, 92171, 121366, 184342, 199387, 243271, 398774, 486542, 528809, 645197, 1057618, 1290394, 1395709, 2119933, 2791418, 3701663, 4239866, 7403326, 12162607, 13098859, 14839531, 24325214, 26197718, 29679062, 85138249, 91692013, 170276498, 183384026, 301273757, 602547514, 799030399, 1598060798, 2108916299, 4217832598, 5593212793, 11186425586, 18377699177, 36755398354, 128643894239, 257287788478]

約数ペア:

[(1, 257287788478), (2, 128643894239), (7, 36755398354), (14, 18377699177), (23, 11186425586), (46, 5593212793), (61, 4217832598), (122, 2108916299), (161, 1598060798), (322, 799030399), (427, 602547514), (854, 301273757), (1403, 183384026), (1511, 170276498), (2806, 91692013), (3022, 85138249), (8669, 29679062), (9821, 26197718), (10577, 24325214), (17338, 14839531), (19642, 13098859), (21154, 12162607), (34753, 7403326), (60683, 4239866), (69506, 3701663), (92171, 2791418), (121366, 2119933), (184342, 1395709), (199387, 1290394), (243271, 1057618), (398774, 645197), (486542, 528809)]