18156712900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{28499}}^1$

素因数の和:28813

約数の個数: 72

約数和(自身を含む): 41262984000

約数和(自身を除く): 23106271100

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 277, 460, 554, 575, 1108, 1150, 1385, 2300, 2770, 5540, 6371, 6925, 12742, 13850, 25484, 27700, 28499, 31855, 56998, 63710, 113996, 127420, 142495, 159275, 284990, 318550, 569980, 637100, 655477, 712475, 1310954, 1424950, 2621908, 2849900, 3277385, 6554770, 7894223, 13109540, 15788446, 16386925, 31576892, 32773850, 39471115, 65547700, 78942230, 157884460, 181567129, 197355575, 363134258, 394711150, 726268516, 789422300, 907835645, 1815671290, 3631342580, 4539178225, 9078356450, 18156712900]

約数ペア:

[(1, 18156712900), (2, 9078356450), (4, 4539178225), (5, 3631342580), (10, 1815671290), (20, 907835645), (23, 789422300), (25, 726268516), (46, 394711150), (50, 363134258), (92, 197355575), (100, 181567129), (115, 157884460), (230, 78942230), (277, 65547700), (460, 39471115), (554, 32773850), (575, 31576892), (1108, 16386925), (1150, 15788446), (1385, 13109540), (2300, 7894223), (2770, 6554770), (5540, 3277385), (6371, 2849900), (6925, 2621908), (12742, 1424950), (13850, 1310954), (25484, 712475), (27700, 655477), (28499, 637100), (31855, 569980), (56998, 318550), (63710, 284990), (113996, 159275), (127420, 142495)]