81892980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:550

約数の個数: 144

約数和(自身を含む): 271514880

約数和(自身を除く): 189621900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 79, 90, 117, 130, 156, 158, 180, 195, 234, 237, 260, 316, 390, 395, 443, 468, 474, 585, 711, 780, 790, 886, 948, 1027, 1170, 1185, 1329, 1422, 1580, 1772, 2054, 2215, 2340, 2370, 2658, 2844, 3081, 3555, 3987, 4108, 4430, 4740, 5135, 5316, 5759, 6162, 6645, 7110, 7974, 8860, 9243, 10270, 11518, 12324, 13290, 14220, 15405, 15948, 17277, 18486, 19935, 20540, 23036, 26580, 28795, 30810, 34554, 34997, 36972, 39870, 46215, 51831, 57590, 61620, 69108, 69994, 79740, 86385, 92430, 103662, 104991, 115180, 139988, 172770, 174985, 184860, 207324, 209982, 259155, 314973, 345540, 349970, 419964, 454961, 518310, 524955, 629946, 699940, 909922, 1036620, 1049910, 1259892, 1364883, 1574865, 1819844, 2099820, 2274805, 2729766, 3149730, 4094649, 4549610, 5459532, 6299460, 6824415, 8189298, 9099220, 13648830, 16378596, 20473245, 27297660, 40946490, 81892980]

約数ペア:

[(1, 81892980), (2, 40946490), (3, 27297660), (4, 20473245), (5, 16378596), (6, 13648830), (9, 9099220), (10, 8189298), (12, 6824415), (13, 6299460), (15, 5459532), (18, 4549610), (20, 4094649), (26, 3149730), (30, 2729766), (36, 2274805), (39, 2099820), (45, 1819844), (52, 1574865), (60, 1364883), (65, 1259892), (78, 1049910), (79, 1036620), (90, 909922), (117, 699940), (130, 629946), (156, 524955), (158, 518310), (180, 454961), (195, 419964), (234, 349970), (237, 345540), (260, 314973), (316, 259155), (390, 209982), (395, 207324), (443, 184860), (468, 174985), (474, 172770), (585, 139988), (711, 115180), (780, 104991), (790, 103662), (886, 92430), (948, 86385), (1027, 79740), (1170, 69994), (1185, 69108), (1329, 61620), (1422, 57590), (1580, 51831), (1772, 46215), (2054, 39870), (2215, 36972), (2340, 34997), (2370, 34554), (2658, 30810), (2844, 28795), (3081, 26580), (3555, 23036), (3987, 20540), (4108, 19935), (4430, 18486), (4740, 17277), (5135, 15948), (5316, 15405), (5759, 14220), (6162, 13290), (6645, 12324), (7110, 11518), (7974, 10270), (8860, 9243)]