81391310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 202051584

約数和(自身を除く): 120660274

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 47, 55, 65, 70, 77, 91, 94, 110, 130, 143, 154, 173, 182, 235, 286, 329, 346, 385, 455, 470, 517, 611, 658, 715, 770, 865, 910, 1001, 1034, 1211, 1222, 1430, 1645, 1730, 1903, 2002, 2249, 2422, 2585, 3055, 3290, 3619, 3806, 4277, 4498, 5005, 5170, 6055, 6110, 6721, 7238, 8131, 8554, 9515, 10010, 11245, 12110, 13321, 13442, 15743, 16262, 18095, 19030, 21385, 22490, 24739, 26642, 31486, 33605, 36190, 40655, 42770, 47047, 49478, 56917, 66605, 67210, 78715, 81310, 89441, 94094, 105703, 113834, 123695, 133210, 157430, 173173, 178882, 211406, 235235, 247390, 284585, 346346, 447205, 470470, 528515, 569170, 626087, 739921, 865865, 894410, 1057030, 1162733, 1252174, 1479842, 1731730, 2325466, 3130435, 3699605, 5813665, 6260870, 7399210, 8139131, 11627330, 16278262, 40695655, 81391310]

約数ペア:

[(1, 81391310), (2, 40695655), (5, 16278262), (7, 11627330), (10, 8139131), (11, 7399210), (13, 6260870), (14, 5813665), (22, 3699605), (26, 3130435), (35, 2325466), (47, 1731730), (55, 1479842), (65, 1252174), (70, 1162733), (77, 1057030), (91, 894410), (94, 865865), (110, 739921), (130, 626087), (143, 569170), (154, 528515), (173, 470470), (182, 447205), (235, 346346), (286, 284585), (329, 247390), (346, 235235), (385, 211406), (455, 178882), (470, 173173), (517, 157430), (611, 133210), (658, 123695), (715, 113834), (770, 105703), (865, 94094), (910, 89441), (1001, 81310), (1034, 78715), (1211, 67210), (1222, 66605), (1430, 56917), (1645, 49478), (1730, 47047), (1903, 42770), (2002, 40655), (2249, 36190), (2422, 33605), (2585, 31486), (3055, 26642), (3290, 24739), (3619, 22490), (3806, 21385), (4277, 19030), (4498, 18095), (5005, 16262), (5170, 15743), (6055, 13442), (6110, 13321), (6721, 12110), (7238, 11245), (8131, 10010), (8554, 9515)]