220520025

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:807

約数の個数: 72

約数和(自身を含む): 434659680

約数和(自身を除く): 214139655

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 139, 165, 225, 275, 417, 495, 641, 695, 825, 1251, 1529, 1923, 2085, 2475, 3205, 3475, 4587, 5769, 6255, 7051, 7645, 9615, 10425, 13761, 16025, 21153, 22935, 28845, 31275, 35255, 38225, 48075, 63459, 68805, 89099, 105765, 114675, 144225, 176275, 267297, 317295, 344025, 445495, 528825, 801891, 980089, 1336485, 1586475, 2227475, 2940267, 4009455, 4900445, 6682425, 8820801, 14701335, 20047275, 24502225, 44104005, 73506675, 220520025]

約数ペア:

[(1, 220520025), (3, 73506675), (5, 44104005), (9, 24502225), (11, 20047275), (15, 14701335), (25, 8820801), (33, 6682425), (45, 4900445), (55, 4009455), (75, 2940267), (99, 2227475), (139, 1586475), (165, 1336485), (225, 980089), (275, 801891), (417, 528825), (495, 445495), (641, 344025), (695, 317295), (825, 267297), (1251, 176275), (1529, 144225), (1923, 114675), (2085, 105765), (2475, 89099), (3205, 68805), (3475, 63459), (4587, 48075), (5769, 38225), (6255, 35255), (7051, 31275), (7645, 28845), (9615, 22935), (10425, 21153), (13761, 16025)]