311927180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20021}}^1$

素因数の和:20090

約数の個数: 48

約数和(自身を含む): 706376160

約数和(自身を除く): 394448980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 20021, 40042, 80084, 100105, 200210, 380399, 400420, 760798, 820861, 1521596, 1641722, 1901995, 3283444, 3803990, 4104305, 7607980, 8208610, 15596359, 16417220, 31192718, 62385436, 77981795, 155963590, 311927180]

約数ペア:

[(1, 311927180), (2, 155963590), (4, 77981795), (5, 62385436), (10, 31192718), (19, 16417220), (20, 15596359), (38, 8208610), (41, 7607980), (76, 4104305), (82, 3803990), (95, 3283444), (164, 1901995), (190, 1641722), (205, 1521596), (380, 820861), (410, 760798), (779, 400420), (820, 380399), (1558, 200210), (3116, 100105), (3895, 80084), (7790, 40042), (15580, 20021)]