80389000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{4231}}^1$

素因数の和:4271

約数の個数: 64

約数和(自身を含む): 198057600

約数和(自身を除く): 117668600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 3800, 4231, 4750, 8462, 9500, 16924, 19000, 21155, 33848, 42310, 80389, 84620, 105775, 160778, 169240, 211550, 321556, 401945, 423100, 528875, 643112, 803890, 846200, 1057750, 1607780, 2009725, 2115500, 3215560, 4019450, 4231000, 8038900, 10048625, 16077800, 20097250, 40194500, 80389000]

約数ペア:

[(1, 80389000), (2, 40194500), (4, 20097250), (5, 16077800), (8, 10048625), (10, 8038900), (19, 4231000), (20, 4019450), (25, 3215560), (38, 2115500), (40, 2009725), (50, 1607780), (76, 1057750), (95, 846200), (100, 803890), (125, 643112), (152, 528875), (190, 423100), (200, 401945), (250, 321556), (380, 211550), (475, 169240), (500, 160778), (760, 105775), (950, 84620), (1000, 80389), (1900, 42310), (2375, 33848), (3800, 21155), (4231, 19000), (4750, 16924), (8462, 9500)]