20140000

素因数分解:

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

素因数の和:102

約数の個数: 120

約数和(自身を含む): 53139240

約数和(自身を除く): 32999240

約数列:

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

約数ペア:

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