161761275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1907}}^1$

素因数の和:1965

約数の個数: 72

約数和(自身を含む): 322948080

約数和(自身を除く): 161186805

約数列:

[1, 3, 5, 9, 13, 15, 25, 29, 39, 45, 65, 75, 87, 117, 145, 195, 225, 261, 325, 377, 435, 585, 725, 975, 1131, 1305, 1885, 1907, 2175, 2925, 3393, 5655, 5721, 6525, 9425, 9535, 16965, 17163, 24791, 28275, 28605, 47675, 55303, 74373, 84825, 85815, 123955, 143025, 165909, 223119, 276515, 371865, 429075, 497727, 619775, 718939, 829545, 1115595, 1382575, 1859325, 2156817, 2488635, 3594695, 4147725, 5577975, 6470451, 10784085, 12443175, 17973475, 32352255, 53920425, 161761275]

約数ペア:

[(1, 161761275), (3, 53920425), (5, 32352255), (9, 17973475), (13, 12443175), (15, 10784085), (25, 6470451), (29, 5577975), (39, 4147725), (45, 3594695), (65, 2488635), (75, 2156817), (87, 1859325), (117, 1382575), (145, 1115595), (195, 829545), (225, 718939), (261, 619775), (325, 497727), (377, 429075), (435, 371865), (585, 276515), (725, 223119), (975, 165909), (1131, 143025), (1305, 123955), (1885, 85815), (1907, 84825), (2175, 74373), (2925, 55303), (3393, 47675), (5655, 28605), (5721, 28275), (6525, 24791), (9425, 17163), (9535, 16965)]