1638341685

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{13859}}^1$

素因数の和:13978

約数の個数: 48

約数和(自身を含む): 2957834880

約数和(自身を除く): 1319493195

約数列:

[1, 3, 5, 9, 15, 37, 45, 71, 111, 185, 213, 333, 355, 555, 639, 1065, 1665, 2627, 3195, 7881, 13135, 13859, 23643, 39405, 41577, 69295, 118215, 124731, 207885, 512783, 623655, 983989, 1538349, 2563915, 2951967, 4615047, 4919945, 7691745, 8855901, 14759835, 23075235, 36407593, 44279505, 109222779, 182037965, 327668337, 546113895, 1638341685]

約数ペア:

[(1, 1638341685), (3, 546113895), (5, 327668337), (9, 182037965), (15, 109222779), (37, 44279505), (45, 36407593), (71, 23075235), (111, 14759835), (185, 8855901), (213, 7691745), (333, 4919945), (355, 4615047), (555, 2951967), (639, 2563915), (1065, 1538349), (1665, 983989), (2627, 623655), (3195, 512783), (7881, 207885), (13135, 124731), (13859, 118215), (23643, 69295), (39405, 41577)]