81400788

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1889}}^1$

素因数の和:1931

約数の個数: 120

約数和(自身を含む): 256132800

約数和(自身を除く): 174732012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 252, 266, 324, 342, 378, 399, 513, 532, 567, 684, 756, 798, 1026, 1134, 1197, 1539, 1596, 1889, 2052, 2268, 2394, 3078, 3591, 3778, 4788, 5667, 6156, 7182, 7556, 10773, 11334, 13223, 14364, 17001, 21546, 22668, 26446, 34002, 35891, 39669, 43092, 51003, 52892, 68004, 71782, 79338, 102006, 107673, 119007, 143564, 153009, 158676, 204012, 215346, 238014, 251237, 306018, 323019, 357021, 430692, 476028, 502474, 612036, 646038, 714042, 753711, 969057, 1004948, 1071063, 1292076, 1428084, 1507422, 1938114, 2142126, 2261133, 2907171, 3014844, 3876228, 4284252, 4522266, 5814342, 6783399, 9044532, 11628684, 13566798, 20350197, 27133596, 40700394, 81400788]

約数ペア:

[(1, 81400788), (2, 40700394), (3, 27133596), (4, 20350197), (6, 13566798), (7, 11628684), (9, 9044532), (12, 6783399), (14, 5814342), (18, 4522266), (19, 4284252), (21, 3876228), (27, 3014844), (28, 2907171), (36, 2261133), (38, 2142126), (42, 1938114), (54, 1507422), (57, 1428084), (63, 1292076), (76, 1071063), (81, 1004948), (84, 969057), (108, 753711), (114, 714042), (126, 646038), (133, 612036), (162, 502474), (171, 476028), (189, 430692), (228, 357021), (252, 323019), (266, 306018), (324, 251237), (342, 238014), (378, 215346), (399, 204012), (513, 158676), (532, 153009), (567, 143564), (684, 119007), (756, 107673), (798, 102006), (1026, 79338), (1134, 71782), (1197, 68004), (1539, 52892), (1596, 51003), (1889, 43092), (2052, 39669), (2268, 35891), (2394, 34002), (3078, 26446), (3591, 22668), (3778, 21546), (4788, 17001), (5667, 14364), (6156, 13223), (7182, 11334), (7556, 10773)]