51526480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 127670400

約数和(自身を除く): 76143920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 311, 380, 436, 545, 622, 760, 872, 1090, 1244, 1520, 1555, 1744, 2071, 2180, 2488, 3110, 4142, 4360, 4976, 5909, 6220, 8284, 8720, 10355, 11818, 12440, 16568, 20710, 23636, 24880, 29545, 33136, 33899, 41420, 47272, 59090, 67798, 82840, 94544, 118180, 135596, 165680, 169495, 236360, 271192, 338990, 472720, 542384, 644081, 677980, 1288162, 1355960, 2576324, 2711920, 3220405, 5152648, 6440810, 10305296, 12881620, 25763240, 51526480]

約数ペア:

[(1, 51526480), (2, 25763240), (4, 12881620), (5, 10305296), (8, 6440810), (10, 5152648), (16, 3220405), (19, 2711920), (20, 2576324), (38, 1355960), (40, 1288162), (76, 677980), (80, 644081), (95, 542384), (109, 472720), (152, 338990), (190, 271192), (218, 236360), (304, 169495), (311, 165680), (380, 135596), (436, 118180), (545, 94544), (622, 82840), (760, 67798), (872, 59090), (1090, 47272), (1244, 41420), (1520, 33899), (1555, 33136), (1744, 29545), (2071, 24880), (2180, 23636), (2488, 20710), (3110, 16568), (4142, 12440), (4360, 11818), (4976, 10355), (5909, 8720), (6220, 8284)]