20162940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:867

約数の個数: 96

約数和(自身を含む): 65662464

約数和(自身を除く): 45499524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 787, 854, 915, 1220, 1281, 1574, 1708, 1830, 2135, 2361, 2562, 3148, 3660, 3935, 4270, 4722, 5124, 5509, 6405, 7870, 8540, 9444, 11018, 11805, 12810, 15740, 16527, 22036, 23610, 25620, 27545, 33054, 47220, 48007, 55090, 66108, 82635, 96014, 110180, 144021, 165270, 192028, 240035, 288042, 330540, 336049, 480070, 576084, 672098, 720105, 960140, 1008147, 1344196, 1440210, 1680245, 2016294, 2880420, 3360490, 4032588, 5040735, 6720980, 10081470, 20162940]

約数ペア:

[(1, 20162940), (2, 10081470), (3, 6720980), (4, 5040735), (5, 4032588), (6, 3360490), (7, 2880420), (10, 2016294), (12, 1680245), (14, 1440210), (15, 1344196), (20, 1008147), (21, 960140), (28, 720105), (30, 672098), (35, 576084), (42, 480070), (60, 336049), (61, 330540), (70, 288042), (84, 240035), (105, 192028), (122, 165270), (140, 144021), (183, 110180), (210, 96014), (244, 82635), (305, 66108), (366, 55090), (420, 48007), (427, 47220), (610, 33054), (732, 27545), (787, 25620), (854, 23610), (915, 22036), (1220, 16527), (1281, 15740), (1574, 12810), (1708, 11805), (1830, 11018), (2135, 9444), (2361, 8540), (2562, 7870), (3148, 6405), (3660, 5509), (3935, 5124), (4270, 4722)]