2080404820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1609}}^1\times {\mathrm{4973}}^1$

素因数の和:6604

約数の個数: 48

約数和(自身を含む): 4708786320

約数和(自身を除く): 2628381500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1609, 3218, 4973, 6436, 8045, 9946, 16090, 19892, 20917, 24865, 32180, 41834, 49730, 64649, 83668, 99460, 104585, 129298, 209170, 258596, 323245, 418340, 646490, 1292980, 8001557, 16003114, 32006228, 40007785, 80015570, 104020241, 160031140, 208040482, 416080964, 520101205, 1040202410, 2080404820]

約数ペア:

[(1, 2080404820), (2, 1040202410), (4, 520101205), (5, 416080964), (10, 208040482), (13, 160031140), (20, 104020241), (26, 80015570), (52, 40007785), (65, 32006228), (130, 16003114), (260, 8001557), (1609, 1292980), (3218, 646490), (4973, 418340), (6436, 323245), (8045, 258596), (9946, 209170), (16090, 129298), (19892, 104585), (20917, 99460), (24865, 83668), (32180, 64649), (41834, 49730)]