20187599775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{199}}^2\times {\mathrm{971}}^1$

素因数の和:1389

約数の個数: 72

約数和(自身を含む): 38377079424

約数和(自身を除く): 18189479649

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 199, 525, 597, 971, 995, 1393, 2913, 2985, 4179, 4855, 4975, 6797, 6965, 14565, 14925, 20391, 20895, 24275, 33985, 34825, 39601, 72825, 101955, 104475, 118803, 169925, 193229, 198005, 277207, 509775, 579687, 594015, 831621, 966145, 990025, 1352603, 1386035, 2898435, 2970075, 4057809, 4158105, 4830725, 6763015, 6930175, 14492175, 20289045, 20790525, 33815075, 38452571, 101445225, 115357713, 192262855, 269167997, 576788565, 807503991, 961314275, 1345839985, 2883942825, 4037519955, 6729199925, 20187599775]

約数ペア:

[(1, 20187599775), (3, 6729199925), (5, 4037519955), (7, 2883942825), (15, 1345839985), (21, 961314275), (25, 807503991), (35, 576788565), (75, 269167997), (105, 192262855), (175, 115357713), (199, 101445225), (525, 38452571), (597, 33815075), (971, 20790525), (995, 20289045), (1393, 14492175), (2913, 6930175), (2985, 6763015), (4179, 4830725), (4855, 4158105), (4975, 4057809), (6797, 2970075), (6965, 2898435), (14565, 1386035), (14925, 1352603), (20391, 990025), (20895, 966145), (24275, 831621), (33985, 594015), (34825, 579687), (39601, 509775), (72825, 277207), (101955, 198005), (104475, 193229), (118803, 169925)]