28245308

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 62963712

約数和(自身を除く): 34718404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 52, 91, 94, 127, 169, 182, 188, 254, 329, 338, 364, 508, 611, 658, 676, 889, 1183, 1222, 1316, 1651, 1778, 2366, 2444, 3302, 3556, 4277, 4732, 5969, 6604, 7943, 8554, 11557, 11938, 15886, 17108, 21463, 23114, 23876, 31772, 41783, 42926, 46228, 55601, 77597, 83566, 85852, 111202, 150241, 155194, 167132, 222404, 300482, 310388, 543179, 600964, 1008761, 1086358, 2017522, 2172716, 4035044, 7061327, 14122654, 28245308]

約数ペア:

[(1, 28245308), (2, 14122654), (4, 7061327), (7, 4035044), (13, 2172716), (14, 2017522), (26, 1086358), (28, 1008761), (47, 600964), (52, 543179), (91, 310388), (94, 300482), (127, 222404), (169, 167132), (182, 155194), (188, 150241), (254, 111202), (329, 85852), (338, 83566), (364, 77597), (508, 55601), (611, 46228), (658, 42926), (676, 41783), (889, 31772), (1183, 23876), (1222, 23114), (1316, 21463), (1651, 17108), (1778, 15886), (2366, 11938), (2444, 11557), (3302, 8554), (3556, 7943), (4277, 6604), (4732, 5969)]