51186320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:708

約数の個数: 80

約数和(自身を含む): 128281968

約数和(自身を除く): 77095648

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 488, 610, 617, 680, 976, 1037, 1220, 1234, 1360, 2074, 2440, 2468, 3085, 4148, 4880, 4936, 5185, 6170, 8296, 9872, 10370, 10489, 12340, 16592, 20740, 20978, 24680, 37637, 41480, 41956, 49360, 52445, 75274, 82960, 83912, 104890, 150548, 167824, 188185, 209780, 301096, 376370, 419560, 602192, 639829, 752740, 839120, 1279658, 1505480, 2559316, 3010960, 3199145, 5118632, 6398290, 10237264, 12796580, 25593160, 51186320]

約数ペア:

[(1, 51186320), (2, 25593160), (4, 12796580), (5, 10237264), (8, 6398290), (10, 5118632), (16, 3199145), (17, 3010960), (20, 2559316), (34, 1505480), (40, 1279658), (61, 839120), (68, 752740), (80, 639829), (85, 602192), (122, 419560), (136, 376370), (170, 301096), (244, 209780), (272, 188185), (305, 167824), (340, 150548), (488, 104890), (610, 83912), (617, 82960), (680, 75274), (976, 52445), (1037, 49360), (1220, 41956), (1234, 41480), (1360, 37637), (2074, 24680), (2440, 20978), (2468, 20740), (3085, 16592), (4148, 12340), (4880, 10489), (4936, 10370), (5185, 9872), (6170, 8296)]