20199555890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1\times {\mathrm{4013}}^1$

素因数の和:5087

約数の個数: 64

約数和(自身を含む): 39874433760

約数和(自身を除く): 19674877870

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 1021, 2042, 2465, 4013, 4930, 5105, 8026, 10210, 17357, 20065, 29609, 34714, 40130, 59218, 68221, 86785, 116377, 136442, 148045, 173570, 232754, 296090, 341105, 503353, 581885, 682210, 1006706, 1163770, 1978409, 2516765, 3956818, 4097273, 5033530, 8194546, 9892045, 19784090, 20486365, 40972730, 69653641, 118820917, 139307282, 237641834, 348268205, 594104585, 696536410, 1188209170, 2019955589, 4039911178, 10099777945, 20199555890]

約数ペア:

[(1, 20199555890), (2, 10099777945), (5, 4039911178), (10, 2019955589), (17, 1188209170), (29, 696536410), (34, 594104585), (58, 348268205), (85, 237641834), (145, 139307282), (170, 118820917), (290, 69653641), (493, 40972730), (986, 20486365), (1021, 19784090), (2042, 9892045), (2465, 8194546), (4013, 5033530), (4930, 4097273), (5105, 3956818), (8026, 2516765), (10210, 1978409), (17357, 1163770), (20065, 1006706), (29609, 682210), (34714, 581885), (40130, 503353), (59218, 341105), (68221, 296090), (86785, 232754), (116377, 173570), (136442, 148045)]