40280000

素因数分解:

$2^6\times 5^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:104

約数の個数: 140

約数和(自身を含む): 107121960

約数和(自身を除く): 66841960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 53, 64, 76, 80, 95, 100, 106, 125, 152, 160, 190, 200, 212, 250, 265, 304, 320, 380, 400, 424, 475, 500, 530, 608, 625, 760, 800, 848, 950, 1000, 1007, 1060, 1216, 1250, 1325, 1520, 1600, 1696, 1900, 2000, 2014, 2120, 2375, 2500, 2650, 3040, 3392, 3800, 4000, 4028, 4240, 4750, 5000, 5035, 5300, 6080, 6625, 7600, 8000, 8056, 8480, 9500, 10000, 10070, 10600, 11875, 13250, 15200, 16112, 16960, 19000, 20000, 20140, 21200, 23750, 25175, 26500, 30400, 32224, 33125, 38000, 40000, 40280, 42400, 47500, 50350, 53000, 64448, 66250, 76000, 80560, 84800, 95000, 100700, 106000, 125875, 132500, 152000, 161120, 190000, 201400, 212000, 251750, 265000, 322240, 380000, 402800, 424000, 503500, 530000, 629375, 760000, 805600, 1007000, 1060000, 1258750, 1611200, 2014000, 2120000, 2517500, 4028000, 5035000, 8056000, 10070000, 20140000, 40280000]

約数ペア:

[(1, 40280000), (2, 20140000), (4, 10070000), (5, 8056000), (8, 5035000), (10, 4028000), (16, 2517500), (19, 2120000), (20, 2014000), (25, 1611200), (32, 1258750), (38, 1060000), (40, 1007000), (50, 805600), (53, 760000), (64, 629375), (76, 530000), (80, 503500), (95, 424000), (100, 402800), (106, 380000), (125, 322240), (152, 265000), (160, 251750), (190, 212000), (200, 201400), (212, 190000), (250, 161120), (265, 152000), (304, 132500), (320, 125875), (380, 106000), (400, 100700), (424, 95000), (475, 84800), (500, 80560), (530, 76000), (608, 66250), (625, 64448), (760, 53000), (800, 50350), (848, 47500), (950, 42400), (1000, 40280), (1007, 40000), (1060, 38000), (1216, 33125), (1250, 32224), (1325, 30400), (1520, 26500), (1600, 25175), (1696, 23750), (1900, 21200), (2000, 20140), (2014, 20000), (2120, 19000), (2375, 16960), (2500, 16112), (2650, 15200), (3040, 13250), (3392, 11875), (3800, 10600), (4000, 10070), (4028, 10000), (4240, 9500), (4750, 8480), (5000, 8056), (5035, 8000), (5300, 7600), (6080, 6625)]