20512019900

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1815223}}^1$

素因数の和:1815350

約数の個数: 36

約数和(自身を含む): 44905011312

約数和(自身を除く): 24392991412

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 226, 452, 565, 1130, 2260, 2825, 5650, 11300, 1815223, 3630446, 7260892, 9076115, 18152230, 36304460, 45380575, 90761150, 181522300, 205120199, 410240398, 820480796, 1025600995, 2051201990, 4102403980, 5128004975, 10256009950, 20512019900]

約数ペア:

[(1, 20512019900), (2, 10256009950), (4, 5128004975), (5, 4102403980), (10, 2051201990), (20, 1025600995), (25, 820480796), (50, 410240398), (100, 205120199), (113, 181522300), (226, 90761150), (452, 45380575), (565, 36304460), (1130, 18152230), (2260, 9076115), (2825, 7260892), (5650, 3630446), (11300, 1815223)]