30420145

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 45868032

約数和(自身を除く): 15447887

約数列:

[1, 5, 7, 23, 31, 35, 53, 115, 155, 161, 217, 265, 371, 529, 713, 805, 1085, 1219, 1643, 1855, 2645, 3565, 3703, 4991, 6095, 8215, 8533, 11501, 16399, 18515, 24955, 28037, 37789, 42665, 57505, 81995, 114793, 140185, 188945, 196259, 264523, 573965, 869147, 981295, 1322615, 4345735, 6084029, 30420145]

約数ペア:

[(1, 30420145), (5, 6084029), (7, 4345735), (23, 1322615), (31, 981295), (35, 869147), (53, 573965), (115, 264523), (155, 196259), (161, 188945), (217, 140185), (265, 114793), (371, 81995), (529, 57505), (713, 42665), (805, 37789), (1085, 28037), (1219, 24955), (1643, 18515), (1855, 16399), (2645, 11501), (3565, 8533), (3703, 8215), (4991, 6095)]