81644861375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3229}}^1$

素因数の和:3370

約数の個数: 128

約数和(自身を含む): 132347105280

約数和(自身を除く): 50702243905

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 71, 77, 125, 175, 185, 259, 275, 355, 385, 407, 497, 781, 875, 925, 1295, 1375, 1775, 1925, 2035, 2485, 2627, 2849, 3229, 3905, 4625, 5467, 6475, 8875, 9625, 10175, 12425, 13135, 14245, 16145, 18389, 19525, 22603, 27335, 28897, 32375, 35519, 50875, 62125, 65675, 71225, 80725, 91945, 97625, 113015, 119473, 136675, 144485, 177595, 202279, 229259, 248633, 328375, 356125, 403625, 459725, 565075, 597365, 683375, 722425, 836311, 887975, 1011395, 1146295, 1243165, 1314203, 1604813, 2298625, 2521849, 2825375, 2986825, 3612125, 4181555, 4439875, 5056975, 5731475, 6215825, 6571015, 8024065, 8482583, 9199421, 12609245, 14934125, 17652943, 20907775, 25284875, 28657375, 31079125, 32855075, 40120325, 42412915, 45997105, 59378081, 63046225, 88264715, 93308413, 104538875, 164275375, 200601625, 212064575, 229985525, 296890405, 315231125, 441323575, 466542065, 653158891, 1060322875, 1149927625, 1484452025, 2206617875, 2332710325, 3265794455, 7422260125, 11663551625, 16328972275, 81644861375]

約数ペア:

[(1, 81644861375), (5, 16328972275), (7, 11663551625), (11, 7422260125), (25, 3265794455), (35, 2332710325), (37, 2206617875), (55, 1484452025), (71, 1149927625), (77, 1060322875), (125, 653158891), (175, 466542065), (185, 441323575), (259, 315231125), (275, 296890405), (355, 229985525), (385, 212064575), (407, 200601625), (497, 164275375), (781, 104538875), (875, 93308413), (925, 88264715), (1295, 63046225), (1375, 59378081), (1775, 45997105), (1925, 42412915), (2035, 40120325), (2485, 32855075), (2627, 31079125), (2849, 28657375), (3229, 25284875), (3905, 20907775), (4625, 17652943), (5467, 14934125), (6475, 12609245), (8875, 9199421), (9625, 8482583), (10175, 8024065), (12425, 6571015), (13135, 6215825), (14245, 5731475), (16145, 5056975), (18389, 4439875), (19525, 4181555), (22603, 3612125), (27335, 2986825), (28897, 2825375), (32375, 2521849), (35519, 2298625), (50875, 1604813), (62125, 1314203), (65675, 1243165), (71225, 1146295), (80725, 1011395), (91945, 887975), (97625, 836311), (113015, 722425), (119473, 683375), (136675, 597365), (144485, 565075), (177595, 459725), (202279, 403625), (229259, 356125), (248633, 328375)]