85816980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{971}}^1$

素因数の和:1477

約数の個数: 72

約数和(自身を含む): 261110304

約数和(自身を除く): 175293324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 491, 971, 982, 1473, 1942, 1964, 2455, 2913, 2946, 3884, 4419, 4855, 4910, 5826, 5892, 7365, 8739, 8838, 9710, 9820, 11652, 14565, 14730, 17478, 17676, 19420, 22095, 29130, 29460, 34956, 43695, 44190, 58260, 87390, 88380, 174780, 476761, 953522, 1430283, 1907044, 2383805, 2860566, 4290849, 4767610, 5721132, 7151415, 8581698, 9535220, 14302830, 17163396, 21454245, 28605660, 42908490, 85816980]

約数ペア:

[(1, 85816980), (2, 42908490), (3, 28605660), (4, 21454245), (5, 17163396), (6, 14302830), (9, 9535220), (10, 8581698), (12, 7151415), (15, 5721132), (18, 4767610), (20, 4290849), (30, 2860566), (36, 2383805), (45, 1907044), (60, 1430283), (90, 953522), (180, 476761), (491, 174780), (971, 88380), (982, 87390), (1473, 58260), (1942, 44190), (1964, 43695), (2455, 34956), (2913, 29460), (2946, 29130), (3884, 22095), (4419, 19420), (4855, 17676), (4910, 17478), (5826, 14730), (5892, 14565), (7365, 11652), (8739, 9820), (8838, 9710)]