27890480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 69638400

約数和(自身を除く): 41747920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 311, 380, 472, 590, 622, 760, 944, 1121, 1180, 1244, 1520, 1555, 2242, 2360, 2488, 3110, 4484, 4720, 4976, 5605, 5909, 6220, 8968, 11210, 11818, 12440, 17936, 18349, 22420, 23636, 24880, 29545, 36698, 44840, 47272, 59090, 73396, 89680, 91745, 94544, 118180, 146792, 183490, 236360, 293584, 348631, 366980, 472720, 697262, 733960, 1394524, 1467920, 1743155, 2789048, 3486310, 5578096, 6972620, 13945240, 27890480]

約数ペア:

[(1, 27890480), (2, 13945240), (4, 6972620), (5, 5578096), (8, 3486310), (10, 2789048), (16, 1743155), (19, 1467920), (20, 1394524), (38, 733960), (40, 697262), (59, 472720), (76, 366980), (80, 348631), (95, 293584), (118, 236360), (152, 183490), (190, 146792), (236, 118180), (295, 94544), (304, 91745), (311, 89680), (380, 73396), (472, 59090), (590, 47272), (622, 44840), (760, 36698), (944, 29545), (1121, 24880), (1180, 23636), (1244, 22420), (1520, 18349), (1555, 17936), (2242, 12440), (2360, 11818), (2488, 11210), (3110, 8968), (4484, 6220), (4720, 5909), (4976, 5605)]