66216780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{52553}}^1$

素因数の和:52575

約数の個数: 72

約数和(自身を含む): 229555872

約数和(自身を除く): 163339092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 52553, 105106, 157659, 210212, 262765, 315318, 367871, 472977, 525530, 630636, 735742, 788295, 945954, 1051060, 1103613, 1471484, 1576590, 1839355, 1891908, 2207226, 2364885, 3153180, 3310839, 3678710, 4414452, 4729770, 5518065, 6621678, 7357420, 9459540, 11036130, 13243356, 16554195, 22072260, 33108390, 66216780]

約数ペア:

[(1, 66216780), (2, 33108390), (3, 22072260), (4, 16554195), (5, 13243356), (6, 11036130), (7, 9459540), (9, 7357420), (10, 6621678), (12, 5518065), (14, 4729770), (15, 4414452), (18, 3678710), (20, 3310839), (21, 3153180), (28, 2364885), (30, 2207226), (35, 1891908), (36, 1839355), (42, 1576590), (45, 1471484), (60, 1103613), (63, 1051060), (70, 945954), (84, 788295), (90, 735742), (105, 630636), (126, 525530), (140, 472977), (180, 367871), (210, 315318), (252, 262765), (315, 210212), (420, 157659), (630, 105106), (1260, 52553)]