79818800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 120

約数和(自身を含む): 204070272

約数和(自身を除く): 124251472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 41, 50, 62, 80, 82, 100, 124, 155, 157, 164, 200, 205, 248, 310, 314, 328, 400, 410, 496, 620, 628, 656, 775, 785, 820, 1025, 1240, 1256, 1271, 1550, 1570, 1640, 2050, 2480, 2512, 2542, 3100, 3140, 3280, 3925, 4100, 4867, 5084, 6200, 6280, 6355, 6437, 7850, 8200, 9734, 10168, 12400, 12560, 12710, 12874, 15700, 16400, 19468, 20336, 24335, 25420, 25748, 31400, 31775, 32185, 38936, 48670, 50840, 51496, 62800, 63550, 64370, 77872, 97340, 101680, 102992, 121675, 127100, 128740, 160925, 194680, 199547, 243350, 254200, 257480, 321850, 389360, 399094, 486700, 508400, 514960, 643700, 798188, 973400, 997735, 1287400, 1596376, 1946800, 1995470, 2574800, 3192752, 3990940, 4988675, 7981880, 9977350, 15963760, 19954700, 39909400, 79818800]

約数ペア:

[(1, 79818800), (2, 39909400), (4, 19954700), (5, 15963760), (8, 9977350), (10, 7981880), (16, 4988675), (20, 3990940), (25, 3192752), (31, 2574800), (40, 1995470), (41, 1946800), (50, 1596376), (62, 1287400), (80, 997735), (82, 973400), (100, 798188), (124, 643700), (155, 514960), (157, 508400), (164, 486700), (200, 399094), (205, 389360), (248, 321850), (310, 257480), (314, 254200), (328, 243350), (400, 199547), (410, 194680), (496, 160925), (620, 128740), (628, 127100), (656, 121675), (775, 102992), (785, 101680), (820, 97340), (1025, 77872), (1240, 64370), (1256, 63550), (1271, 62800), (1550, 51496), (1570, 50840), (1640, 48670), (2050, 38936), (2480, 32185), (2512, 31775), (2542, 31400), (3100, 25748), (3140, 25420), (3280, 24335), (3925, 20336), (4100, 19468), (4867, 16400), (5084, 15700), (6200, 12874), (6280, 12710), (6355, 12560), (6437, 12400), (7850, 10168), (8200, 9734)]