19100000

素因数分解:

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

素因数の和:226

約数の個数: 72

約数和(自身を含む): 47246976

約数和(自身を除く): 28146976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 191, 200, 250, 382, 400, 500, 625, 764, 800, 955, 1000, 1250, 1528, 1910, 2000, 2500, 3056, 3125, 3820, 4000, 4775, 5000, 6112, 6250, 7640, 9550, 10000, 12500, 15280, 19100, 20000, 23875, 25000, 30560, 38200, 47750, 50000, 76400, 95500, 100000, 119375, 152800, 191000, 238750, 382000, 477500, 596875, 764000, 955000, 1193750, 1910000, 2387500, 3820000, 4775000, 9550000, 19100000]

約数ペア:

[(1, 19100000), (2, 9550000), (4, 4775000), (5, 3820000), (8, 2387500), (10, 1910000), (16, 1193750), (20, 955000), (25, 764000), (32, 596875), (40, 477500), (50, 382000), (80, 238750), (100, 191000), (125, 152800), (160, 119375), (191, 100000), (200, 95500), (250, 76400), (382, 50000), (400, 47750), (500, 38200), (625, 30560), (764, 25000), (800, 23875), (955, 20000), (1000, 19100), (1250, 15280), (1528, 12500), (1910, 10000), (2000, 9550), (2500, 7640), (3056, 6250), (3125, 6112), (3820, 5000), (4000, 4775)]