80745250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 161740800

約数和(自身を除く): 80995550

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 89, 95, 125, 178, 190, 191, 250, 382, 445, 475, 890, 950, 955, 1691, 1910, 2225, 2375, 3382, 3629, 4450, 4750, 4775, 7258, 8455, 9550, 11125, 16910, 16999, 18145, 22250, 23875, 33998, 36290, 42275, 47750, 84550, 84995, 90725, 169990, 181450, 211375, 322981, 422750, 424975, 453625, 645962, 849950, 907250, 1614905, 2124875, 3229810, 4249750, 8074525, 16149050, 40372625, 80745250]

約数ペア:

[(1, 80745250), (2, 40372625), (5, 16149050), (10, 8074525), (19, 4249750), (25, 3229810), (38, 2124875), (50, 1614905), (89, 907250), (95, 849950), (125, 645962), (178, 453625), (190, 424975), (191, 422750), (250, 322981), (382, 211375), (445, 181450), (475, 169990), (890, 90725), (950, 84995), (955, 84550), (1691, 47750), (1910, 42275), (2225, 36290), (2375, 33998), (3382, 23875), (3629, 22250), (4450, 18145), (4750, 16999), (4775, 16910), (7258, 11125), (8455, 9550)]