261000112

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:738

約数の個数: 60

約数和(自身を含む): 541888680

約数和(自身を除く): 280888568

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 361, 584, 619, 722, 1168, 1238, 1387, 1444, 2476, 2774, 2888, 4952, 5548, 5776, 9904, 11096, 11761, 22192, 23522, 26353, 45187, 47044, 52706, 90374, 94088, 105412, 180748, 188176, 210824, 223459, 361496, 421648, 446918, 722992, 858553, 893836, 1717106, 1787672, 3434212, 3575344, 6868424, 13736848, 16312507, 32625014, 65250028, 130500056, 261000112]

約数ペア:

[(1, 261000112), (2, 130500056), (4, 65250028), (8, 32625014), (16, 16312507), (19, 13736848), (38, 6868424), (73, 3575344), (76, 3434212), (146, 1787672), (152, 1717106), (292, 893836), (304, 858553), (361, 722992), (584, 446918), (619, 421648), (722, 361496), (1168, 223459), (1238, 210824), (1387, 188176), (1444, 180748), (2476, 105412), (2774, 94088), (2888, 90374), (4952, 52706), (5548, 47044), (5776, 45187), (9904, 26353), (11096, 23522), (11761, 22192)]