30471980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 81672192

約数和(自身を除く): 51200212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 47, 55, 70, 77, 94, 110, 140, 154, 188, 220, 235, 308, 329, 385, 421, 470, 517, 658, 770, 842, 940, 1034, 1316, 1540, 1645, 1684, 2068, 2105, 2585, 2947, 3290, 3619, 4210, 4631, 5170, 5894, 6580, 7238, 8420, 9262, 10340, 11788, 14476, 14735, 18095, 18524, 19787, 23155, 29470, 32417, 36190, 39574, 46310, 58940, 64834, 72380, 79148, 92620, 98935, 129668, 138509, 162085, 197870, 217657, 277018, 324170, 395740, 435314, 554036, 648340, 692545, 870628, 1088285, 1385090, 1523599, 2176570, 2770180, 3047198, 4353140, 6094396, 7617995, 15235990, 30471980]

約数ペア:

[(1, 30471980), (2, 15235990), (4, 7617995), (5, 6094396), (7, 4353140), (10, 3047198), (11, 2770180), (14, 2176570), (20, 1523599), (22, 1385090), (28, 1088285), (35, 870628), (44, 692545), (47, 648340), (55, 554036), (70, 435314), (77, 395740), (94, 324170), (110, 277018), (140, 217657), (154, 197870), (188, 162085), (220, 138509), (235, 129668), (308, 98935), (329, 92620), (385, 79148), (421, 72380), (470, 64834), (517, 58940), (658, 46310), (770, 39574), (842, 36190), (940, 32417), (1034, 29470), (1316, 23155), (1540, 19787), (1645, 18524), (1684, 18095), (2068, 14735), (2105, 14476), (2585, 11788), (2947, 10340), (3290, 9262), (3619, 8420), (4210, 7238), (4631, 6580), (5170, 5894)]