291225284

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 613912320

約数和(自身を除く): 322687036

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 79, 124, 137, 158, 217, 274, 316, 434, 548, 553, 868, 959, 961, 1106, 1918, 1922, 2212, 2449, 3836, 3844, 4247, 4898, 6727, 8494, 9796, 10823, 13454, 16988, 17143, 21646, 26908, 29729, 34286, 43292, 59458, 68572, 75761, 75919, 118916, 131657, 151522, 151838, 263314, 303044, 303676, 335513, 526628, 531433, 671026, 921599, 1062866, 1342052, 1843198, 2125732, 2348591, 3686396, 4697182, 9394364, 10400903, 20801806, 41603612, 72806321, 145612642, 291225284]

約数ペア:

[(1, 291225284), (2, 145612642), (4, 72806321), (7, 41603612), (14, 20801806), (28, 10400903), (31, 9394364), (62, 4697182), (79, 3686396), (124, 2348591), (137, 2125732), (158, 1843198), (217, 1342052), (274, 1062866), (316, 921599), (434, 671026), (548, 531433), (553, 526628), (868, 335513), (959, 303676), (961, 303044), (1106, 263314), (1918, 151838), (1922, 151522), (2212, 131657), (2449, 118916), (3836, 75919), (3844, 75761), (4247, 68572), (4898, 59458), (6727, 43292), (8494, 34286), (9796, 29729), (10823, 26908), (13454, 21646), (16988, 17143)]