4004060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 9102240

約数和(自身を除く): 5098180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 257, 380, 410, 514, 779, 820, 1028, 1285, 1558, 2570, 3116, 3895, 4883, 5140, 7790, 9766, 10537, 15580, 19532, 21074, 24415, 42148, 48830, 52685, 97660, 105370, 200203, 210740, 400406, 800812, 1001015, 2002030, 4004060]

約数ペア:

[(1, 4004060), (2, 2002030), (4, 1001015), (5, 800812), (10, 400406), (19, 210740), (20, 200203), (38, 105370), (41, 97660), (76, 52685), (82, 48830), (95, 42148), (164, 24415), (190, 21074), (205, 19532), (257, 15580), (380, 10537), (410, 9766), (514, 7790), (779, 5140), (820, 4883), (1028, 3895), (1285, 3116), (1558, 2570)]