20875050

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{47}}^2$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 67168320

約数和(自身を除く): 46293270

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 47, 50, 54, 63, 70, 75, 90, 94, 105, 126, 135, 141, 150, 175, 189, 210, 225, 235, 270, 282, 315, 329, 350, 378, 423, 450, 470, 525, 630, 658, 675, 705, 846, 945, 987, 1050, 1175, 1269, 1350, 1410, 1575, 1645, 1890, 1974, 2115, 2209, 2350, 2538, 2961, 3150, 3290, 3525, 4230, 4418, 4725, 4935, 5922, 6345, 6627, 7050, 8225, 8883, 9450, 9870, 10575, 11045, 12690, 13254, 14805, 15463, 16450, 17766, 19881, 21150, 22090, 24675, 29610, 30926, 31725, 33135, 39762, 44415, 46389, 49350, 55225, 59643, 63450, 66270, 74025, 77315, 88830, 92778, 99405, 110450, 119286, 139167, 148050, 154630, 165675, 198810, 222075, 231945, 278334, 298215, 331350, 386575, 417501, 444150, 463890, 497025, 596430, 695835, 773150, 835002, 994050, 1159725, 1391670, 1491075, 2087505, 2319450, 2982150, 3479175, 4175010, 6958350, 10437525, 20875050]

約数ペア:

[(1, 20875050), (2, 10437525), (3, 6958350), (5, 4175010), (6, 3479175), (7, 2982150), (9, 2319450), (10, 2087505), (14, 1491075), (15, 1391670), (18, 1159725), (21, 994050), (25, 835002), (27, 773150), (30, 695835), (35, 596430), (42, 497025), (45, 463890), (47, 444150), (50, 417501), (54, 386575), (63, 331350), (70, 298215), (75, 278334), (90, 231945), (94, 222075), (105, 198810), (126, 165675), (135, 154630), (141, 148050), (150, 139167), (175, 119286), (189, 110450), (210, 99405), (225, 92778), (235, 88830), (270, 77315), (282, 74025), (315, 66270), (329, 63450), (350, 59643), (378, 55225), (423, 49350), (450, 46389), (470, 44415), (525, 39762), (630, 33135), (658, 31725), (675, 30926), (705, 29610), (846, 24675), (945, 22090), (987, 21150), (1050, 19881), (1175, 17766), (1269, 16450), (1350, 15463), (1410, 14805), (1575, 13254), (1645, 12690), (1890, 11045), (1974, 10575), (2115, 9870), (2209, 9450), (2350, 8883), (2538, 8225), (2961, 7050), (3150, 6627), (3290, 6345), (3525, 5922), (4230, 4935), (4418, 4725)]