25927780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 60056640

約数和(自身を除く): 34128860

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 71, 76, 95, 124, 142, 155, 190, 284, 310, 355, 380, 589, 620, 710, 961, 1178, 1349, 1420, 1922, 2201, 2356, 2698, 2945, 3844, 4402, 4805, 5396, 5890, 6745, 8804, 9610, 11005, 11780, 13490, 18259, 19220, 22010, 26980, 36518, 41819, 44020, 68231, 73036, 83638, 91295, 136462, 167276, 182590, 209095, 272924, 341155, 365180, 418190, 682310, 836380, 1296389, 1364620, 2592778, 5185556, 6481945, 12963890, 25927780]

約数ペア:

[(1, 25927780), (2, 12963890), (4, 6481945), (5, 5185556), (10, 2592778), (19, 1364620), (20, 1296389), (31, 836380), (38, 682310), (62, 418190), (71, 365180), (76, 341155), (95, 272924), (124, 209095), (142, 182590), (155, 167276), (190, 136462), (284, 91295), (310, 83638), (355, 73036), (380, 68231), (589, 44020), (620, 41819), (710, 36518), (961, 26980), (1178, 22010), (1349, 19220), (1420, 18259), (1922, 13490), (2201, 11780), (2356, 11005), (2698, 9610), (2945, 8804), (3844, 6745), (4402, 5890), (4805, 5396)]