2000200220170

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{638171}}^1$

素因数の和:638455

約数の個数: 64

約数和(自身を含む): 3802872053376

約数和(自身を除く): 1802671833206

約数列:

[1, 2, 5, 10, 37, 43, 74, 86, 185, 197, 215, 370, 394, 430, 985, 1591, 1970, 3182, 7289, 7955, 8471, 14578, 15910, 16942, 36445, 42355, 72890, 84710, 313427, 626854, 638171, 1276342, 1567135, 3134270, 3190855, 6381710, 23612327, 27441353, 47224654, 54882706, 118061635, 125719687, 137206765, 236123270, 251439374, 274413530, 628598435, 1015330061, 1257196870, 2030660122, 4651628419, 5076650305, 5405946541, 9303256838, 10153300610, 10811893082, 23258142095, 27029732705, 46516284190, 54059465410, 200020022017, 400040044034, 1000100110085, 2000200220170]

約数ペア:

[(1, 2000200220170), (2, 1000100110085), (5, 400040044034), (10, 200020022017), (37, 54059465410), (43, 46516284190), (74, 27029732705), (86, 23258142095), (185, 10811893082), (197, 10153300610), (215, 9303256838), (370, 5405946541), (394, 5076650305), (430, 4651628419), (985, 2030660122), (1591, 1257196870), (1970, 1015330061), (3182, 628598435), (7289, 274413530), (7955, 251439374), (8471, 236123270), (14578, 137206765), (15910, 125719687), (16942, 118061635), (36445, 54882706), (42355, 47224654), (72890, 27441353), (84710, 23612327), (313427, 6381710), (626854, 3190855), (638171, 3134270), (1276342, 1567135)]