20000904

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 63590400

約数和(自身を除く): 43589496

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 79, 84, 88, 132, 137, 154, 158, 168, 231, 237, 264, 274, 308, 316, 411, 462, 474, 548, 553, 616, 632, 822, 869, 924, 948, 959, 1096, 1106, 1507, 1644, 1659, 1738, 1848, 1896, 1918, 2212, 2607, 2877, 3014, 3288, 3318, 3476, 3836, 4424, 4521, 5214, 5754, 6028, 6083, 6636, 6952, 7672, 9042, 10428, 10549, 10823, 11508, 12056, 12166, 13272, 18084, 18249, 20856, 21098, 21646, 23016, 24332, 31647, 32469, 36168, 36498, 42196, 43292, 48664, 63294, 64938, 72996, 75761, 84392, 86584, 119053, 126588, 129876, 145992, 151522, 227283, 238106, 253176, 259752, 303044, 357159, 454566, 476212, 606088, 714318, 833371, 909132, 952424, 1428636, 1666742, 1818264, 2500113, 2857272, 3333484, 5000226, 6666968, 10000452, 20000904]

約数ペア:

[(1, 20000904), (2, 10000452), (3, 6666968), (4, 5000226), (6, 3333484), (7, 2857272), (8, 2500113), (11, 1818264), (12, 1666742), (14, 1428636), (21, 952424), (22, 909132), (24, 833371), (28, 714318), (33, 606088), (42, 476212), (44, 454566), (56, 357159), (66, 303044), (77, 259752), (79, 253176), (84, 238106), (88, 227283), (132, 151522), (137, 145992), (154, 129876), (158, 126588), (168, 119053), (231, 86584), (237, 84392), (264, 75761), (274, 72996), (308, 64938), (316, 63294), (411, 48664), (462, 43292), (474, 42196), (548, 36498), (553, 36168), (616, 32469), (632, 31647), (822, 24332), (869, 23016), (924, 21646), (948, 21098), (959, 20856), (1096, 18249), (1106, 18084), (1507, 13272), (1644, 12166), (1659, 12056), (1738, 11508), (1848, 10823), (1896, 10549), (1918, 10428), (2212, 9042), (2607, 7672), (2877, 6952), (3014, 6636), (3288, 6083), (3318, 6028), (3476, 5754), (3836, 5214), (4424, 4521)]