68107780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:869

約数の個数: 96

約数和(自身を含む): 171884160

約数和(自身を除く): 103776380

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 646, 811, 884, 988, 1105, 1235, 1292, 1615, 1622, 2210, 2470, 3230, 3244, 4055, 4199, 4420, 4940, 6460, 8110, 8398, 10543, 13787, 15409, 16220, 16796, 20995, 21086, 27574, 30818, 41990, 42172, 52715, 55148, 61636, 68935, 77045, 83980, 105430, 137870, 154090, 179231, 200317, 210860, 261953, 275740, 308180, 358462, 400634, 523906, 716924, 801268, 896155, 1001585, 1047812, 1309765, 1792310, 2003170, 2619530, 3405389, 3584620, 4006340, 5239060, 6810778, 13621556, 17026945, 34053890, 68107780]

約数ペア:

[(1, 68107780), (2, 34053890), (4, 17026945), (5, 13621556), (10, 6810778), (13, 5239060), (17, 4006340), (19, 3584620), (20, 3405389), (26, 2619530), (34, 2003170), (38, 1792310), (52, 1309765), (65, 1047812), (68, 1001585), (76, 896155), (85, 801268), (95, 716924), (130, 523906), (170, 400634), (190, 358462), (221, 308180), (247, 275740), (260, 261953), (323, 210860), (340, 200317), (380, 179231), (442, 154090), (494, 137870), (646, 105430), (811, 83980), (884, 77045), (988, 68935), (1105, 61636), (1235, 55148), (1292, 52715), (1615, 42172), (1622, 41990), (2210, 30818), (2470, 27574), (3230, 21086), (3244, 20995), (4055, 16796), (4199, 16220), (4420, 15409), (4940, 13787), (6460, 10543), (8110, 8398)]