20949174.000000000

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{472939}}^1$

素因数の和:472962

約数の個数: 32

約数和(自身を含む): 476723520

約数和(自身を除く): 292277310

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 472939, 945878, 1418817, 2364695, 2837634, 4729390, 6148207, 7094085, 12296414, 14188170, 18444621, 30741035, 36889242, 61482070, 92223105, 184446210]

約数ペア:

[(1, 184446210), (2, 92223105), (3, 61482070), (5, 36889242), (6, 30741035), (10, 18444621), (13, 14188170), (15, 12296414), (26, 7094085), (30, 6148207), (39, 4729390), (65, 2837634), (78, 2364695), (130, 1418817), (195, 945878), (390, 472939)]