128889350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 253942080

約数和(自身を除く): 125052730

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 211, 422, 475, 643, 950, 1055, 1286, 2110, 3215, 4009, 5275, 6430, 8018, 10550, 12217, 16075, 20045, 24434, 32150, 40090, 61085, 100225, 122170, 135673, 200450, 271346, 305425, 610850, 678365, 1356730, 2577787, 3391825, 5155574, 6783650, 12888935, 25777870, 64444675, 128889350]

約数ペア:

[(1, 128889350), (2, 64444675), (5, 25777870), (10, 12888935), (19, 6783650), (25, 5155574), (38, 3391825), (50, 2577787), (95, 1356730), (190, 678365), (211, 610850), (422, 305425), (475, 271346), (643, 200450), (950, 135673), (1055, 122170), (1286, 100225), (2110, 61085), (3215, 40090), (4009, 32150), (5275, 24434), (6430, 20045), (8018, 16075), (10550, 12217)]