81655520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22189}}^1$

素因数の和:22227

約数の個数: 48

約数和(自身を含む): 201307680

約数和(自身を除く): 119652160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 22189, 44378, 88756, 110945, 177512, 221890, 355024, 443780, 510347, 710048, 887560, 1020694, 1775120, 2041388, 2551735, 3550240, 4082776, 5103470, 8165552, 10206940, 16331104, 20413880, 40827760, 81655520]

約数ペア:

[(1, 81655520), (2, 40827760), (4, 20413880), (5, 16331104), (8, 10206940), (10, 8165552), (16, 5103470), (20, 4082776), (23, 3550240), (32, 2551735), (40, 2041388), (46, 1775120), (80, 1020694), (92, 887560), (115, 710048), (160, 510347), (184, 443780), (230, 355024), (368, 221890), (460, 177512), (736, 110945), (920, 88756), (1840, 44378), (3680, 22189)]