81938800

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2593}}^1$

素因数の和:2690

約数の個数: 60

約数和(自身を含む): 199426720

約数和(自身を除く): 117487920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 2593, 3160, 3950, 5186, 6320, 7900, 10372, 12965, 15800, 20744, 25930, 31600, 41488, 51860, 64825, 103720, 129650, 204847, 207440, 259300, 409694, 518600, 819388, 1024235, 1037200, 1638776, 2048470, 3277552, 4096940, 5121175, 8193880, 10242350, 16387760, 20484700, 40969400, 81938800]

約数ペア:

[(1, 81938800), (2, 40969400), (4, 20484700), (5, 16387760), (8, 10242350), (10, 8193880), (16, 5121175), (20, 4096940), (25, 3277552), (40, 2048470), (50, 1638776), (79, 1037200), (80, 1024235), (100, 819388), (158, 518600), (200, 409694), (316, 259300), (395, 207440), (400, 204847), (632, 129650), (790, 103720), (1264, 64825), (1580, 51860), (1975, 41488), (2593, 31600), (3160, 25930), (3950, 20744), (5186, 15800), (6320, 12965), (7900, 10372)]