20453895.000000000

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{35089}}^1$

素因数の和:35162

約数の個数: 48

約数和(自身を含む): 365497440

約数和(自身を除く): 237071700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 35089, 70178, 105267, 140356, 175445, 210534, 350890, 421068, 526335, 701780, 1052670, 2105340, 2140429, 4280858, 6421287, 8561716, 10702145, 12842574, 21404290, 25685148, 32106435, 42808580, 64212870, 128425740]

約数ペア:

[(1, 128425740), (2, 64212870), (3, 42808580), (4, 32106435), (5, 25685148), (6, 21404290), (10, 12842574), (12, 10702145), (15, 8561716), (20, 6421287), (30, 4280858), (60, 2140429), (61, 2105340), (122, 1052670), (183, 701780), (244, 526335), (305, 421068), (366, 350890), (610, 210534), (732, 175445), (915, 140356), (1220, 105267), (1830, 70178), (3660, 35089)]