72778475

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 54

約数和(自身を含む): 115625412

約数和(自身を除く): 42846937

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 121, 175, 245, 275, 385, 491, 539, 605, 847, 1225, 1925, 2455, 2695, 3025, 3437, 4235, 5401, 5929, 12275, 13475, 17185, 21175, 24059, 27005, 29645, 37807, 59411, 85925, 120295, 135025, 148225, 189035, 264649, 297055, 415877, 601475, 945175, 1323245, 1485275, 2079385, 2911139, 6616225, 10396925, 14555695, 72778475]

約数ペア:

[(1, 72778475), (5, 14555695), (7, 10396925), (11, 6616225), (25, 2911139), (35, 2079385), (49, 1485275), (55, 1323245), (77, 945175), (121, 601475), (175, 415877), (245, 297055), (275, 264649), (385, 189035), (491, 148225), (539, 135025), (605, 120295), (847, 85925), (1225, 59411), (1925, 37807), (2455, 29645), (2695, 27005), (3025, 24059), (3437, 21175), (4235, 17185), (5401, 13475), (5929, 12275)]