2005421625

素因数分解:

$3^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{8369}}^1$

素因数の和:8464

約数の個数: 64

約数和(自身を含む): 3760473600

約数和(自身を除く): 1755051975

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 125, 135, 213, 225, 355, 375, 639, 675, 1065, 1125, 1775, 1917, 3195, 3375, 5325, 8369, 8875, 9585, 15975, 25107, 26625, 41845, 47925, 75321, 79875, 125535, 209225, 225963, 239625, 376605, 594199, 627675, 1046125, 1129815, 1782597, 1883025, 2970995, 3138375, 5347791, 5649075, 8912985, 9415125, 14854975, 16043373, 26738955, 28245375, 44564925, 74274875, 80216865, 133694775, 222824625, 401084325, 668473875, 2005421625]

約数ペア:

[(1, 2005421625), (3, 668473875), (5, 401084325), (9, 222824625), (15, 133694775), (25, 80216865), (27, 74274875), (45, 44564925), (71, 28245375), (75, 26738955), (125, 16043373), (135, 14854975), (213, 9415125), (225, 8912985), (355, 5649075), (375, 5347791), (639, 3138375), (675, 2970995), (1065, 1883025), (1125, 1782597), (1775, 1129815), (1917, 1046125), (3195, 627675), (3375, 594199), (5325, 376605), (8369, 239625), (8875, 225963), (9585, 209225), (15975, 125535), (25107, 79875), (26625, 75321), (41845, 47925)]