19762000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:305

約数の個数: 80

約数和(自身を含む): 49153104

約数和(自身を除く): 29391104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 241, 250, 328, 400, 410, 482, 500, 656, 820, 964, 1000, 1025, 1205, 1640, 1928, 2000, 2050, 2410, 3280, 3856, 4100, 4820, 5125, 6025, 8200, 9640, 9881, 10250, 12050, 16400, 19280, 19762, 20500, 24100, 30125, 39524, 41000, 48200, 49405, 60250, 79048, 82000, 96400, 98810, 120500, 158096, 197620, 241000, 247025, 395240, 482000, 494050, 790480, 988100, 1235125, 1976200, 2470250, 3952400, 4940500, 9881000, 19762000]

約数ペア:

[(1, 19762000), (2, 9881000), (4, 4940500), (5, 3952400), (8, 2470250), (10, 1976200), (16, 1235125), (20, 988100), (25, 790480), (40, 494050), (41, 482000), (50, 395240), (80, 247025), (82, 241000), (100, 197620), (125, 158096), (164, 120500), (200, 98810), (205, 96400), (241, 82000), (250, 79048), (328, 60250), (400, 49405), (410, 48200), (482, 41000), (500, 39524), (656, 30125), (820, 24100), (964, 20500), (1000, 19762), (1025, 19280), (1205, 16400), (1640, 12050), (1928, 10250), (2000, 9881), (2050, 9640), (2410, 8200), (3280, 6025), (3856, 5125), (4100, 4820)]