131978990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 303730560

約数和(自身を除く): 171751570

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 61, 65, 85, 89, 110, 122, 130, 143, 170, 178, 187, 221, 286, 305, 374, 442, 445, 610, 671, 715, 793, 890, 935, 979, 1037, 1105, 1157, 1342, 1430, 1513, 1586, 1870, 1958, 2074, 2210, 2314, 2431, 3026, 3355, 3965, 4862, 4895, 5185, 5429, 5785, 6710, 7565, 7930, 8723, 9790, 10370, 10858, 11407, 11570, 12155, 12727, 13481, 15130, 16643, 17446, 19669, 22814, 24310, 25454, 26962, 27145, 33286, 39338, 43615, 54290, 57035, 59719, 63635, 67405, 70577, 83215, 87230, 92293, 98345, 114070, 119438, 127270, 134810, 141154, 148291, 166430, 184586, 196690, 216359, 296582, 298595, 352885, 432718, 461465, 597190, 705770, 741455, 776347, 922930, 1015223, 1081795, 1199809, 1482910, 1552694, 2030446, 2163590, 2399618, 3881735, 5076115, 5999045, 7763470, 10152230, 11998090, 13197899, 26395798, 65989495, 131978990]

約数ペア:

[(1, 131978990), (2, 65989495), (5, 26395798), (10, 13197899), (11, 11998090), (13, 10152230), (17, 7763470), (22, 5999045), (26, 5076115), (34, 3881735), (55, 2399618), (61, 2163590), (65, 2030446), (85, 1552694), (89, 1482910), (110, 1199809), (122, 1081795), (130, 1015223), (143, 922930), (170, 776347), (178, 741455), (187, 705770), (221, 597190), (286, 461465), (305, 432718), (374, 352885), (442, 298595), (445, 296582), (610, 216359), (671, 196690), (715, 184586), (793, 166430), (890, 148291), (935, 141154), (979, 134810), (1037, 127270), (1105, 119438), (1157, 114070), (1342, 98345), (1430, 92293), (1513, 87230), (1586, 83215), (1870, 70577), (1958, 67405), (2074, 63635), (2210, 59719), (2314, 57035), (2431, 54290), (3026, 43615), (3355, 39338), (3965, 33286), (4862, 27145), (4895, 26962), (5185, 25454), (5429, 24310), (5785, 22814), (6710, 19669), (7565, 17446), (7930, 16643), (8723, 15130), (9790, 13481), (10370, 12727), (10858, 12155), (11407, 11570)]