2021026315

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{719}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 3110400000

約数和(自身を除く): 1089373685

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 149, 245, 343, 385, 539, 719, 745, 1043, 1639, 1715, 2695, 3595, 3773, 5033, 5215, 7301, 7909, 8195, 11473, 18865, 25165, 35231, 36505, 39545, 51107, 55363, 57365, 80311, 107131, 176155, 246617, 255535, 276815, 387541, 401555, 535655, 562177, 749917, 1178441, 1233085, 1937705, 2712787, 2810885, 3749585, 5249419, 5892205, 8249087, 13563935, 26247095, 36745933, 41245435, 57743609, 183729665, 288718045, 404205263, 2021026315]

約数ペア:

[(1, 2021026315), (5, 404205263), (7, 288718045), (11, 183729665), (35, 57743609), (49, 41245435), (55, 36745933), (77, 26247095), (149, 13563935), (245, 8249087), (343, 5892205), (385, 5249419), (539, 3749585), (719, 2810885), (745, 2712787), (1043, 1937705), (1639, 1233085), (1715, 1178441), (2695, 749917), (3595, 562177), (3773, 535655), (5033, 401555), (5215, 387541), (7301, 276815), (7909, 255535), (8195, 246617), (11473, 176155), (18865, 107131), (25165, 80311), (35231, 57365), (36505, 55363), (39545, 51107)]