19291000

素因数分解:

$2^3\times 5^3\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 26535560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 191, 200, 202, 250, 382, 404, 500, 505, 764, 808, 955, 1000, 1010, 1528, 1910, 2020, 2525, 3820, 4040, 4775, 5050, 7640, 9550, 10100, 12625, 19100, 19291, 20200, 23875, 25250, 38200, 38582, 47750, 50500, 77164, 95500, 96455, 101000, 154328, 191000, 192910, 385820, 482275, 771640, 964550, 1929100, 2411375, 3858200, 4822750, 9645500, 19291000]

約数ペア:

[(1, 19291000), (2, 9645500), (4, 4822750), (5, 3858200), (8, 2411375), (10, 1929100), (20, 964550), (25, 771640), (40, 482275), (50, 385820), (100, 192910), (101, 191000), (125, 154328), (191, 101000), (200, 96455), (202, 95500), (250, 77164), (382, 50500), (404, 47750), (500, 38582), (505, 38200), (764, 25250), (808, 23875), (955, 20200), (1000, 19291), (1010, 19100), (1528, 12625), (1910, 10100), (2020, 9550), (2525, 7640), (3820, 5050), (4040, 4775)]