278360500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 144

約数和(自身を含む): 690161472

約数和(自身を除く): 411800972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 107, 110, 121, 125, 172, 214, 215, 220, 242, 250, 275, 428, 430, 473, 484, 500, 535, 550, 605, 860, 946, 1070, 1075, 1100, 1177, 1210, 1375, 1892, 2140, 2150, 2354, 2365, 2420, 2675, 2750, 3025, 4300, 4601, 4708, 4730, 5203, 5350, 5375, 5500, 5885, 6050, 9202, 9460, 10406, 10700, 10750, 11770, 11825, 12100, 12947, 13375, 15125, 18404, 20812, 21500, 23005, 23540, 23650, 25894, 26015, 26750, 29425, 30250, 46010, 47300, 50611, 51788, 52030, 53500, 58850, 59125, 60500, 64735, 92020, 101222, 104060, 115025, 117700, 118250, 129470, 130075, 147125, 202444, 230050, 236500, 253055, 258940, 260150, 294250, 323675, 460100, 506110, 520300, 556721, 575125, 588500, 647350, 650375, 1012220, 1113442, 1150250, 1265275, 1294700, 1300750, 1618375, 2226884, 2300500, 2530550, 2601500, 2783605, 3236750, 5061100, 5567210, 6326375, 6473500, 11134420, 12652750, 13918025, 25305500, 27836050, 55672100, 69590125, 139180250, 278360500]

約数ペア:

[(1, 278360500), (2, 139180250), (4, 69590125), (5, 55672100), (10, 27836050), (11, 25305500), (20, 13918025), (22, 12652750), (25, 11134420), (43, 6473500), (44, 6326375), (50, 5567210), (55, 5061100), (86, 3236750), (100, 2783605), (107, 2601500), (110, 2530550), (121, 2300500), (125, 2226884), (172, 1618375), (214, 1300750), (215, 1294700), (220, 1265275), (242, 1150250), (250, 1113442), (275, 1012220), (428, 650375), (430, 647350), (473, 588500), (484, 575125), (500, 556721), (535, 520300), (550, 506110), (605, 460100), (860, 323675), (946, 294250), (1070, 260150), (1075, 258940), (1100, 253055), (1177, 236500), (1210, 230050), (1375, 202444), (1892, 147125), (2140, 130075), (2150, 129470), (2354, 118250), (2365, 117700), (2420, 115025), (2675, 104060), (2750, 101222), (3025, 92020), (4300, 64735), (4601, 60500), (4708, 59125), (4730, 58850), (5203, 53500), (5350, 52030), (5375, 51788), (5500, 50611), (5885, 47300), (6050, 46010), (9202, 30250), (9460, 29425), (10406, 26750), (10700, 26015), (10750, 25894), (11770, 23650), (11825, 23540), (12100, 23005), (12947, 21500), (13375, 20812), (15125, 18404)]