19801656

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:509

約数の個数: 96

約数和(自身を含む): 62056800

約数和(自身を除く): 42255144

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 101, 126, 168, 202, 252, 303, 389, 404, 504, 606, 707, 778, 808, 909, 1167, 1212, 1414, 1556, 1818, 2121, 2334, 2424, 2723, 2828, 3112, 3501, 3636, 4242, 4668, 5446, 5656, 6363, 7002, 7272, 8169, 8484, 9336, 10892, 12726, 14004, 16338, 16968, 21784, 24507, 25452, 28008, 32676, 39289, 49014, 50904, 65352, 78578, 98028, 117867, 157156, 196056, 235734, 275023, 314312, 353601, 471468, 550046, 707202, 825069, 942936, 1100092, 1414404, 1650138, 2200184, 2475207, 2828808, 3300276, 4950414, 6600552, 9900828, 19801656]

約数ペア:

[(1, 19801656), (2, 9900828), (3, 6600552), (4, 4950414), (6, 3300276), (7, 2828808), (8, 2475207), (9, 2200184), (12, 1650138), (14, 1414404), (18, 1100092), (21, 942936), (24, 825069), (28, 707202), (36, 550046), (42, 471468), (56, 353601), (63, 314312), (72, 275023), (84, 235734), (101, 196056), (126, 157156), (168, 117867), (202, 98028), (252, 78578), (303, 65352), (389, 50904), (404, 49014), (504, 39289), (606, 32676), (707, 28008), (778, 25452), (808, 24507), (909, 21784), (1167, 16968), (1212, 16338), (1414, 14004), (1556, 12726), (1818, 10892), (2121, 9336), (2334, 8484), (2424, 8169), (2723, 7272), (2828, 7002), (3112, 6363), (3501, 5656), (3636, 5446), (4242, 4668)]