204219080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{647}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 496419840

約数和(自身を除く): 292200760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 607, 647, 1214, 1294, 2428, 2588, 3035, 3235, 4856, 5176, 6070, 6470, 7891, 8411, 12140, 12940, 15782, 16822, 24280, 25880, 31564, 33644, 39455, 42055, 63128, 67288, 78910, 84110, 157820, 168220, 315640, 336440, 392729, 785458, 1570916, 1963645, 3141832, 3927290, 5105477, 7854580, 10210954, 15709160, 20421908, 25527385, 40843816, 51054770, 102109540, 204219080]

約数ペア:

[(1, 204219080), (2, 102109540), (4, 51054770), (5, 40843816), (8, 25527385), (10, 20421908), (13, 15709160), (20, 10210954), (26, 7854580), (40, 5105477), (52, 3927290), (65, 3141832), (104, 1963645), (130, 1570916), (260, 785458), (520, 392729), (607, 336440), (647, 315640), (1214, 168220), (1294, 157820), (2428, 84110), (2588, 78910), (3035, 67288), (3235, 63128), (4856, 42055), (5176, 39455), (6070, 33644), (6470, 31564), (7891, 25880), (8411, 24280), (12140, 16822), (12940, 15782)]