72120125

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 115015680

約数和(自身を除く): 42895555

約数列:

[1, 5, 7, 11, 25, 35, 55, 59, 77, 125, 127, 175, 275, 295, 385, 413, 635, 649, 875, 889, 1375, 1397, 1475, 1925, 2065, 3175, 3245, 4445, 4543, 6985, 7375, 7493, 9625, 9779, 10325, 15875, 16225, 22225, 22715, 34925, 37465, 48895, 51625, 52451, 81125, 82423, 111125, 113575, 174625, 187325, 244475, 262255, 412115, 567875, 576961, 936625, 1222375, 1311275, 2060575, 2884805, 6556375, 10302875, 14424025, 72120125]

約数ペア:

[(1, 72120125), (5, 14424025), (7, 10302875), (11, 6556375), (25, 2884805), (35, 2060575), (55, 1311275), (59, 1222375), (77, 936625), (125, 576961), (127, 567875), (175, 412115), (275, 262255), (295, 244475), (385, 187325), (413, 174625), (635, 113575), (649, 111125), (875, 82423), (889, 81125), (1375, 52451), (1397, 51625), (1475, 48895), (1925, 37465), (2065, 34925), (3175, 22715), (3245, 22225), (4445, 16225), (4543, 15875), (6985, 10325), (7375, 9779), (7493, 9625)]