20705535788

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{67049}}^1$

素因数の和:67370

約数の個数: 48

約数和(自身を含む): 42579432000

約数和(自身を除く): 21873896212

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 269, 287, 538, 574, 1076, 1148, 1883, 3766, 7532, 11029, 22058, 44116, 67049, 77203, 134098, 154406, 268196, 308812, 469343, 938686, 1877372, 2749009, 5498018, 10996036, 18036181, 19243063, 36072362, 38486126, 72144724, 76972252, 126253267, 252506534, 505013068, 739483421, 1478966842, 2957933684, 5176383947, 10352767894, 20705535788]

約数ペア:

[(1, 20705535788), (2, 10352767894), (4, 5176383947), (7, 2957933684), (14, 1478966842), (28, 739483421), (41, 505013068), (82, 252506534), (164, 126253267), (269, 76972252), (287, 72144724), (538, 38486126), (574, 36072362), (1076, 19243063), (1148, 18036181), (1883, 10996036), (3766, 5498018), (7532, 2749009), (11029, 1877372), (22058, 938686), (44116, 469343), (67049, 308812), (77203, 268196), (134098, 154406)]