72121215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 123429600

約数和(自身を除く): 51308385

約数列:

[1, 3, 5, 15, 23, 61, 69, 115, 149, 183, 305, 345, 447, 529, 745, 915, 1403, 1587, 2235, 2645, 3427, 4209, 7015, 7935, 9089, 10281, 17135, 21045, 27267, 32269, 45445, 51405, 78821, 96807, 136335, 161345, 209047, 236463, 394105, 484035, 627141, 1045235, 1182315, 3135705, 4808081, 14424243, 24040405, 72121215]

約数ペア:

[(1, 72121215), (3, 24040405), (5, 14424243), (15, 4808081), (23, 3135705), (61, 1182315), (69, 1045235), (115, 627141), (149, 484035), (183, 394105), (305, 236463), (345, 209047), (447, 161345), (529, 136335), (745, 96807), (915, 78821), (1403, 51405), (1587, 45445), (2235, 32269), (2645, 27267), (3427, 21045), (4209, 17135), (7015, 10281), (7935, 9089)]